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The World's Fastest Electric Car

Roland Piquepaille writes "In this review, Forbes.com looks at the fastest electric vehicle in the world, the tzero roadster built by AC Propulsion Inc. 'The tzero does 0 to 60 mph in 3.6 seconds, according to the company, and it does it on only 200 horsepower.' The company says it starts faster than a Ferrari F355. It also has a limited range of 280 to 300 miles at 60 mph on a single charge. The company expects a price somewhere between a Porsche and a Ferrari, but Forbes says it carries a $220,000 sticker price. This overview contains more details and links. It also includes a rendering of the Tzero. Please note that the Forbes article has a very different focus from the one mentioned in a previous Slashdot reference."

45 of 400 comments (clear)

  1. Forbes missed a good point - go figure by ericspinder · · Score: 5, Insightful
    ...hybrids, diesels and hydrogen cars now seem like more viable alternatives to electric cars, whose customers have complained about their golf-cart powerplant noise and limited range.

    The difference between a traditional electric car and one of those new-fangled hybrid cars is the power source only. What is really amazing about this car is that a 110lb electric engine produces 200 hp and that easly makes the transtion between electic, hybrid, and hydrogen cars. I am still scatching my head about diesel engines being included.

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    The grass is only greener, if you don't take care of your own lawn.
  2. Ad Campaign... by bcolflesh · · Score: 5, Funny

    The World's Fastest Electric Car - don't let the price shock you.

  3. Talking about electric cars by photonic · · Score: 5, Interesting

    What about the world's fastest SOLAR-electric car?
    The Nuna II, just won the World Solar Challenge, travelling 3000 kilometers in just 31 hours, averaging around 97 km/h.

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    karma police: arrest this man, he talks in maths; he buzzes like a fridge, he's like a detuned radio. [radiohead]
  4. And the tree is the... by Creepy+Crawler · · Score: 3, Funny

    World's fastest stopper. 60 to 0 in 0 seconds flat.

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  5. Golf Carts by Fastball · · Score: 5, Funny

    Anyone who golfs knows what kind of punch an electric golf cart has from a stand still shouldn't be surprised by this. Nothing beats waiting for your playing partner to get one foot in the cart and then flooring it. He gets bended backwards over the seat like a pretzel. Pisses at your and struggling with a sore back, he shanks it the rest of the round. Fun with inertia!

  6. Battery life! by illogique · · Score: 3, Insightful

    if it's like a laptop, you will have to change de battery after 1-2 years!! and how costly is a car battery??

    1. Re:Battery life! by Peyna · · Score: 3, Informative

      Rather than being 'design to fail' after the warranty expires; it is more likely that they are designed for their own purposes. Then rigorous testing will show the average time that the item will fail, and the warranty date is set to a time after that point at which they can still afford to have a warranty and not be losing money.

      The phrase "Designed to fail after the warranty expires" is misleading. The warranty date is set after the product is designed, built, and tested.

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      What?
    2. Re:Battery life! by suss · · Score: 3, Funny

      I don't think that someone who paid $220,000 for the car is going to worry about the price of a car battery...

    3. Re:Battery life! by Raunch · · Score: 2, Informative

      3000$ was the number that thay were quoting for the lead-acid.

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      George II -- Spreading Freedom and American values, one bomb at a time.
  7. What about the Tengo? by jpatters · · Score: 3, Interesting

    What about the Tengo?
    It gets 0-60 in about 4 seconds, and a top speed of 130MPH. That is certainly better than 3.6 and 60.

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    "Remember, there never were pineapple-almond cookies here."
    1. Re:What about the Tengo? by dreamchaser · · Score: 3, Informative

      It also only has an 80 mile range...

  8. Where's the energy saving? by Davak · · Score: 3, Interesting

    Not trolling... I just honestly don't know.

    How are electrical cars more energy efficent than gas powered ones? We get the majority of our electricity from burning fossil fuels.

    If we all convert over to electrical cars, will be not just burning more oil and coal in our power plants?

    Where the energy-saving step that I am missing?

    Davak

    1. Re:Where's the energy saving? by Peyna · · Score: 4, Informative

      Power plants are incredibly more efficient at producing electricity than your car engine.

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      What?
    2. Re:Where's the energy saving? by Cecil · · Score: 3, Informative

      The most important fact here is that most powerplants are not emitting their pollution directly onto crowded downtown streets.

      Whether they emit more pollution en masse than vehicles do is irrelevant, as those are not normalized statistics. Electricity is used for just about everything these days, but combustion engines are used for transportation and very little else. Is it really any wonder that power plants generate more pollution? They're providing much more power overall, even despite transmission line losses (which are quite low, compared to the inefficiency of a typical gasoline combustion engine).

      If you could take away 33% of the CO2 emissions (vehicles) and add back maybe 10% of that by adding new power plants, does that sound like a good deal to you? They're more efficient, it really is that simple.

    3. Re:Where's the energy saving? by UniverseIsADoughnut · · Score: 2, Insightful

      " Power plants are incredibly more efficient at producing electricity than your car engine."

      This is for the most part false. While some powerplants are high efficency, like over 50 percent, that is rare. Most are in the 30-40 percent land the same as a car engine depending on fuel.

      Also most powerplants in the US are coal, which is both very unclean, and not a very efficent plant. and nuclear plants can't be run at their full potentials do to safety concerns.

      A new car engine is one of the most efficent power plants there is, also the cleanest.

  9. Re:hmm. by mrtroy · · Score: 4, Insightful

    Whose average commute is longer than 100 miles?

    And when you are sitting in traffic, do you need to go 0-60 in 4.1 seconds? :P

    Why can cars with a relatively low range not be used for commuting to and from work?

    --
    [I can picture a world without war, without hate. I can picture us attacking that world, because they'd never expect it]
  10. What's the Ferrari's "limited range"? by Clith · · Score: 2, Insightful
    [the electric car] also has a limited range of 280 to 300 miles at 60 mph on a single charge.
    As opposed to the Ferrari, which has an unlimited range? Given its gas consumption and small size, I wonder just how much more range the Ferrari has? Does anyone know?

    Also, is the electric car most efficient (in terms of miles per.. um, Watt I guess) at 60 mph? Or was that speed chosen because it's what gas-powered cars use?

    Inquiring minds want to know!

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    [ReidNews]
    1. Re:What's the Ferrari's "limited range"? by MrCam · · Score: 2, Insightful

      It doesn't really matter that much. I would guess the Ferrari has a 15 gallon tank at about 12Mpg so would get around 180 miles. But here is the important part if you run out of fuel it only takes a few minutes to get more. Not to mention the cars have different perposes the TZero is more of a proof of concept the Ferrari is a toy for the rich that like to go very fast and impress people.

      Of course this brings up the biggest problem with electric cars. The problem isn't speed or range as much as it is charging time. If someone could come up with a way to charge the batteries in 5 minutes or less then electric cars would be all over the place.

      No one wants to go 301 miles and have to wait 4 hours for the car to charge to keep going, and no one wants to wake up late for work and realize they forgot to plug the car in last night and they may not have the juice to get to work.

    2. Re:What's the Ferrari's "limited range"? by Mononoke · · Score: 2, Insightful
      As opposed to the Ferrari, which has an unlimited range? Given its gas consumption and small size, I wonder just how much more range the Ferrari has? Does anyone know?
      I don't know, but I do know that you can 'recharge' the Ferrari in under 5 minutes.

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      NetInfo connection failed for server 127.0.0.1/local
  11. maybe a bit too light.... by Lord_Slepnir · · Score: 4, Funny
    Drivers get an analog current meter, voltmeter, altimeter

    I have a problem getting into a car that is so likely to become airborne that the manufactuer put in an altimeter.

  12. Re:hmm. by icejai · · Score: 5, Informative

    If you read the article you would know that the range of 100 miles was the range of the vehicle with some older battery. With a 'new li-ion' one, the range was increased to 280 to 300 miles.

  13. 200hp is 200hp, gas or electric.. by caveat · · Score: 2, Interesting

    ..the only reason that 200hp can push the car to 60 in ~4 seconds is because the thing is the size of a matchbox (look at the Gallery pics, the car is about as big as a gas pump :D). I suffered with an MR2 MkII for a couple of years, this thing looks 2/3 the size...good thing it only has an hour range, my legs couldn't take much more.

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    Facts do not cease to exist because they are ignored. - Aldous Huxley
  14. Re:How much oil to make the electricity? by horza · · Score: 4, Insightful

    How much coal, oil, gas is required on a large scale to make all of that extra electricity that would be required? Seems to be close to a zero sum proposition.

    With every country but the USA moving to minimum renewable energy targets, it's an increasingly attractive proposition. Plus you can generate your own electricity if you wish, using renewable sources. I won't rehash all the benefits of centralising the cleaning of fumes in a power station as opposed to millions of portable generators, as already discussed dozens of times on Slashdot, so even in todays infrastructure it still makes sense (especially countries like France where over 80% of energy is nuclear).

    Phillip.

  15. Electric Motors have high torque by pz · · Score: 3, Interesting

    Electric motors, unlike internal combustion engines, can generate maximum torque at zero RPM. This translates directly into excellent off-line acceleration, impressive 0-60 times, and all-round high performance. Around-town driving in an electric car should give the impression that there's a much bigger engine due to our preconceptions based on internal combusion (thus, the comment "only 200 hp"). Top speed, however, will seem stunted in comparison to that available from an internal combustion engine because they generally produce increasing torque with increasing RPM (especially below 2000 RPM).

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    Put my fist through my alarm clock with its ding-dong death inside my ear. - The Blackjacks.
    1. Re:Electric Motors have high torque by nexthec · · Score: 2, Insightful

      200hp is 200hp

      yes, true in the strictest sense, however a gas or desiel must use a clutch or transmision with significant losses because they have zero torq at zero speed. A variavble freqeuncy induction drive (like this) can generate all that torque at start, so you can actually apply more force, even tought the peak is still the same level.

    2. Re:Electric Motors have high torque by Malc · · Score: 2, Informative

      200hp is more hp than my turbo-charged internal combustion engine car. My car has a speed limiter on it set to 220kph, but it can certainly go faster if that's removed. 200hp is a lot, even if it seems miserly in these days 500+hp.

    3. Re:Electric Motors have high torque by pmz · · Score: 2, Insightful


      Top speed, however, will seem stunted in comparison to that available from an internal combustion engine because they generally produce increasing torque with increasing RPM

      If the motors are embedded in each wheel, they could always operate in low-RPM high-torque ranges. Four motors operating simultaneously could be powerful enough to forego any need for gear reduction. The only disadvantage would be excessive weight in the suspension (i.e., not great for a sports car).

    4. Re:Electric Motors have high torque by pmz · · Score: 2, Informative


      Actually, it would probably be more practical to put the motors where traditionally the differentials would go, and embed the planetary gear set in the motor itself. This allows two motors and a lightweight suspension.

  16. It's in a bunch of places by Spamalamadingdong · · Score: 5, Informative
    How are electrical cars more energy efficent than gas powered ones?
    Among other things, electric cars don't sit in traffic with their engines idling but doing no work. They also have no throttling losses from operating at part load.
    We get the majority of our electricity from burning fossil fuels.
    If you have e.g. a Ford Ranger which uses 300 watt-hours/mile at the wheels while getting 25 miles per gallon at cruise, it is operating at about 21% efficiency. A typical old-technology coal-fired steam turbine gets 30-35% efficiency, a gas-fired combined-cycle turbine plant can beat 50% handily, and other technologies can probably hit 60% or more. If these are used along with co-generation to supply heat for other uses, total utilization of the fuel can probably exceed 80%. That's four times what the truck can get on its own.
    If we all convert over to electrical cars, will be not just burning more oil and coal in our power plants?
    But given the higher efficiency, we'll be burning less overall. We'll also have the option of supplying cars from nuclear, wind, hydropower or solar; anything that makes electricity is the same as far as the car is concerned.

    The substantial storage capacity of electric car battery packs would also give benefits for the electrical grid (which should be high on our list of priorities after 8/14/2003). See the papers at acpropulsion.com about vehicle-to-grid ancillary services.

    And no, I have no relationship with these guys, I just think they're clever and have a damned good idea.

    1. Re:It's in a bunch of places by jimsum · · Score: 3, Informative

      The Ford Ranger is actually less efficient since you didn't account for the energy costs of producing the gas. Producing gasoline from crude oil is about 88% efficient.

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      -- Pot is safer than Beer
    2. Re:It's in a bunch of places by mfarver · · Score: 2, Informative

      A friend of mine works for AustinEnergy (Austin, TX Municipal Utility) used their non-public information on transport losses and pollution to work out the calculations for losses and compared gasoline to electric.

      Even worst case (coal fired electric plant) the electric car still came out ahead in pollution and energy efficency, and that was ignoring the energy/pollution involved in pumping, refining and transporting gasoline. (The numbers compared pump to road vs coal to road)

      The best case though is much better, a gasoline car will always pollute the same (maybe even worse as emissions components wear). My electric car gets cleaner everyday as more renewable sources are added to the grid.

      (Actually, its pretty clean already, since I pay a slight premium to the power company for 100% renewable energy at my home.)

  17. Re:Anybody else catch the generator trailer? by confused+one · · Score: 2, Insightful
    No. It allows you to drive cross country without having to make stops (for several hours) to charge the battery.

    It effectively makes the car a hybrid.

  18. Re:hmm. by trumpetplayer · · Score: 2, Interesting

    4.1 sec is bloody fast actually and in fact you have to be quite skilled to get a figure like that from a car driving yourself (I'm now talking about a manual-gearbox, fuel car), it's not just putting your foot down, you do that and then too suddenly you need to take care of many many things at the same time (changing gears, compensating steering).

    By the way, and this applies to fuel, electric whatever car: You don't need to spend big money (Ferrari, Porsche as mentioned by these guys) to get ridiculous performance. I'm the proud owner of a "Locost" kit car which does 0-60 in 3.8 secs and paid about $7500 (5000 actually) for it on the road. Description of these here.

    Cheers,

    Alex

  19. Re:The hybrids are the next step. by Lumpy · · Score: 3, Insightful

    then when do we see hybrids that have REAL efficiency?

    30-50 MPG is a waste of time. the VW TDI deisel get's 55MPG and is NOT HYBRID.

    Hybrids should be at 60-80MPG now and +100Mpg by the end of this decade.

    until then I'll stick with a VW TDI and the ability to get it serviced almost anywhere unlike a hybrid car.

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    Do not look at laser with remaining good eye.
  20. Re:Clean, efficient travel! by Bertie · · Score: 2, Insightful

    It's a start, isn't it? Do you think when the first computers were being knocked together out of valves and punched-card readers, and filling up a room, their creators shouldn't have bothered because they were so expensive that the masses couldn't afford them? Or are you glad that they did, and that continuous innovation's put ever more powerful tools in the hands of an ever increasing proportion of the world's population?

  21. Re:You forgot transmission losses for electricity by Marc2k · · Score: 3, Informative

    "Put 100 megawatts of power into a transmission grid and I doubt much more than 50 or 60 megawatts come out the other end."

    False. Modern transmission systems can achieve under 2% loss in large-scale power transmission. And that's talking about a scale of Terawatts Hours, not Megawatts (keeping in mind that as the amount of energy lost in transmission is proportional to the amount of energy transmitted). Granted the site is for the UK power grid, but it shows you that any modern transmission system is ridiculously unlikely to be operating at 50% loss on a megawatt scale, even when dealing with distribution levels (transmission refers generally to connected substations, etc. on the power grid, distribution refers to how it gets to your house from there).

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    --- What
  22. HP is only part of the equation for speed. by rebelcool · · Score: 2, Informative

    Learn about torque. Electric motors generate tons of it at any speed. Gas engines don't. Most people havent a clue what horsepower actually is. these days its a well abused marketing term. Sort of like claiming mhz in a computer processor defines how fast it computes.

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  23. Re:hmm. by geekoid · · Score: 3, Insightful

    "plus most driving in the city is sitting at a standstill so the vehicle uses almost ZERO power while sitting."

    do buy in to that. In the real world, its going to need a radio, and some enviromental controls.

    Not that this isn't interesting, but they really need a test that involves what most consumer would want.
    Clearly, buy purchasing this car, the consumer feels they don't need what a gas engine brings them, but how many people will sit inside a car with no AC when its 100 degree outside? or a heater when its 32F/0C outside?

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    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  24. AFFORDABLE electric vehicle links by aws910 · · Score: 2, Informative

    IMO, I think this vehicle is overpriced. Most electric motors will out-accelerate equivalent gas-powered ones. Here are some links to other fun electric vehicles that the common man can actually afford:

    An electric crotch-rocket style motorcycle for $6800 at Electric Motorsport

    An electric dirt-bike for $4699 at Electric moto

  25. Re:The hybrids are the next step. by Andy_R · · Score: 2, Interesting

    Considering that hybrids have to carry around 2 engines, a fuel tank and batteries, probably not for a long time.

    Smart sell 100s of thousands in Europe, but haven't even bothered bringing their amazing 2-seaters to the States, where the bigger, heavier and unaerodynamic a vehicle is the more successful it seems to be.

    Smart used to just make the sub-sub-mini coupe, (which I'll admit is a bit odd even though I drive one) but now there is the sporty roadster, a very pretty car indeed which gets better economy than the Prius from it's turbocharged Mercedes engine, and costs less than a mid-range Ford. Pop over to www.smart.com and see what you are missing.

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    A pizza of radius z and thickness a has a volume of pi z z a
  26. Re:The hybrids are the next step. by SpaceCadetTrav · · Score: 2, Informative

    My buddy turned on his Honda hybrid for me yesterday and it said he had been getting 65 mpg. That was in LA traffic.

  27. Current hybrids are not optimized for efficiency by Dr.+Zowie · · Score: 2, Insightful

    The Toyota Prius is NOT designed to get the maximum efficiency. It's designed to get TDI-like efficiency with "all the trimmings" -- it's a quiet, moderately zippy family car with a lot of goodies that would have been factory options a decade ago. The Toyota engineers chose not to go for maximum efficiency (like the Honda Insight), but rather for the efficiency of a jellybean car (like the Geo Metro) in a quiet, comfortable, safe four-door.

  28. Re:hmm. by ctr2sprt · · Score: 2, Insightful
    Whose average commute is longer than 100 miles?
    I suppose there are a few, but the bigger concern is whether you can plug your car in at work. So your question needs to be revised to "whose average one-way commute is longer than 50 miles," and there are a pretty high number of those. Don't forget that you absolutely need some margin of error in case you have to take a detour or want to drive someplace for lunch, so perhaps the question should be "who will sometimes drive more than 100 miles in an ordinary day?" I suspect by now we're talking about nearly half the commuter workforce.
    And when you are sitting in traffic, do you need to go 0-60 in 4.1 seconds?
    0-60 times aren't very useful for most people most of the time, true, but there aren't many cars that just stop accelerating at 60. Generally it gives you a good idea of how quickly the car can accelerate at all sorts of speeds, in particular the 40-60 range and the 60-80 range (the two most common speed ranges for passing cars, which is where you actually need good acceleration).
    Why can cars with a relatively low range not be used for commuting to and from work?
    Because more and more people commute long distances to work. They'd rather live in the suburbs and have an hour-long commute than live in the city and have a ten-minute one.
  29. Re:You forgot transmission losses for electricity by jafac · · Score: 3, Insightful

    " If OPEC decides it wants to raise the price of oil again, we can just make more nuclear power plants"

    No - the current political regime does not see things this way.

    OPEC does not raise the price of oil. OPEC cuts supply. This has the effect of raising the price of oil. Which is enormously profitable for domestic oil producers. Who donate huge sums of money to politicians to ensure that this continues to happen.

    So you see, there's NO incentive for domestic energy companies to abandon the profitable oil business and compete with other energy sources like nuclear, solar, wind, or faeries, and it doesn't have anything to do with whether a given technology is green or not. Has everything to do with how profitable it is to keep the market dependent on the artificially scarce resource.

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    These are my friends, See how they glisten. See this one shine, how he smiles in the light.
  30. Re:Electric cars by ajs318 · · Score: 2, Informative

    Regenerative braking doesn't recover all the energy. I apologise for not making that more obvious. The wastage due to friction {an absolute, not a percentage} is directly proportional to mass -- so heavier vehicles are less efficient.

    I think you are also being quite pessimistic about the efficiency of internal combustion engines. With proper engine management and continuously-variable transmission systems, engines are much more efficient today than they used to be. An ordinary car has only five gear ratios, so the engine speed has to vary greatly to cover a range of road speeds. An engine driving the wheels through a CVT keeps constant revs except during acceleration. As long as you press hard on the gas pedal, the engine speeds up; when you relax your foot, the engine starts slowing down and the transmission adjusts to make up the road speed. When you press the brake, the transmission adjusts to match the road speed to the still-slowing-down engine, so it will be ready to drive again when required. When maintaining any constant speed, the engine maintains the same constant revs. The transmission ratio is adjusted so gradually that a clutch is only needed when the vehicle is coming to rest. Modern electromagnetic clutches are better than centrifugal clutches, because they disengage more positively.

    Better-refined fuels - which would almost certainly become the norm anyway with the adoption of biomass-derived replacements for petroleum - and leaner fuel-air ratios would eliminate the need for catalytic converters {themselves a bodge, sacrificing fuel efficiency for slightly cleaner emissions} as the products would consist of just carbon dioxide and water vapour, and no unburned fuel. The exhaust products would still carry away kinetic energy, but some of this could be recovered with a turbocharger. With the engine doing near-constant revs, the turbo could be active almost full time - achieving an efficiency close to the theoretical maximum.

    I've no problem with the idea of electric vehicles per se {and modern electronic control systems have the same benefits as CVT}; I just don't think lugging a heavy battery around is the best way to do it. But for public transport systems powered by means of overhead wires, electricity certainly has advantages.

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    Je fume. Tu fumes. Nous fûmes!