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Tesla Model 3 Falls Short of Consumer Reports Recommendation (cnbc.com)

Consumer Reports published their review of the Tesla Model 3 today. The product review site liked the vehicle's range of the battery and agile handling, but had issues with braking, controls, and ride quality. Overall, it failed to get a recommendation. CNBC highlights the key shortfalls: "Our testers also found flaws -- big flaws -- such as long stopping distances in our emergency braking test and difficult-to-use controls," said a review in the publication. In particular, the car's stopping distance of 152 feet from a speed of 60 miles per hour was slower than any of its contemporaries, including the Ford F-150, a full-size pickup. The location of almost all of Tesla's controls on a touchscreen and the vehicle's ride quality were also factors in the group's decision. Tesla issued a statement in response to Consumer Reports' stopping distance claim: "Tesla's own testing has found braking distances with an average of 133 feet when conducting the 60-0 mph stops using the 18-inch Michelin all season tire and as low as 126 feet with all tires currently available. Stopping distance results are affected by variables such as road surface, weather conditions, tire temperature, brake conditioning, outside temperature, and past driving behavior that may have affected the brake system. Unlike other vehicles, Tesla is uniquely positioned to address more corner cases over time through over-the-air software updates, and it continually does so to improve factors such as stopping distance."

14 of 297 comments (clear)

  1. Won't matter by Tablizer · · Score: 4, Insightful

    Most people buy Tesla's to be cool, not to be practical.

  2. Braking distance suggests QA problem at Tesla by Solandri · · Score: 5, Insightful

    CR doesn't accept manufacturer-provided samples for testing. They pose as a buyer and buy the product just as a regular customer would. This includes cars. So the car they test in their review is a true random sample. If Tesla is getting 133 ft stopping distances in their internal testing, while CR got a 152 ft stopping distance, that would suggest a QA problem at Tesla is resulting in large variability in the effectiveness of the brakes. Which given all the problems they've had with their Model 3 production wouldn't be that surprising.

    1. Re:Braking distance suggests QA problem at Tesla by scamper_22 · · Score: 3, Insightful

      Isn't it amazing how CR idea of testing makes more sense to me than the government testing.

      Even for all these emissions scandals that we've been hit with. Wouldn't it make more sense to just take a random car and drive it around the city with some stops and then on a clear highway.

      You'd get a pretty good sampling of the needed data. It might not be exact enough to distinguish a car with 7.0 L/100 KM versus 7.2 L/100 KM. But who really cares about that 0.2 as a consumer.

    2. Re:Braking distance suggests QA problem at Tesla by farble1670 · · Score: 3, Interesting

      In that case how did they get a car? At this point it's invitation only.

      How'd you get yours? Maybe they got an invitation?

      I haven't noticed an issue with stopping power—it seems quite good.

      I'm going to go with decades of experience testing cars over random guy on the internet.

    3. Re:Braking distance suggests QA problem at Tesla by Rei · · Score: 4, Informative

      (For anyone who cares) - Just minutes ago Musk responded to this:

      Very strange. Model 3 is designed to have super good stopping distance & others reviewers have confirmed this. If there is vehicle variability, we will figure it out & address. May just be a question of firmware tuning, in which case can be solved by an OTA software update.

      Oh, now another:

      Even if a physical upgrade is needed to existing fleet, we will make sure all Model 3’s having amazing braking ability at no expense to customers

      Lots of people responding that they think that the CR report is BS because their cars stop better than any other car they've ever had, yadda yadda... but I'm glad Musk isn't being dismissive.

      --
      Give a boy a gun and you arm him for a day. Teach him how to make a gun, and the whole metaphor breaks down.
    4. Re:Braking distance suggests QA problem at Tesla by Rei · · Score: 3, Interesting

      Another:

      The CR braking result is inconsistent with other reviewers, but might indicate that some Model 3’s have longer braking distances than others. If so, we will address this at our expense. First time we’ve seen anything like this.

      Also responded to a person who wrote "Elon any chance of adding air compressors at Superchargers to fill up our tires ??" with "Good point. Yeah, we will do that for the bigger locations."

      --
      Give a boy a gun and you arm him for a day. Teach him how to make a gun, and the whole metaphor breaks down.
  3. Really? by Luthair · · Score: 3, Insightful

    Unlike other vehicles, Tesla is uniquely positioned to address more corner cases over time through over-the-air software updates, and it continually does so to improve factors such as stopping distance."

    Eyeroll. I'm sure you'll be able to make major changes to stopping distance via a software update.

    1. Re:Really? by Anonymous Coward · · Score: 3, Insightful

      regenerative braking

    2. Re:Really? by dmitrygr · · Score: 3, Insightful

      I doubt if that can be modified OTA.

      Prepare to be terrified

      --
      -------
      1. Enjoy your job
      2. Make lots of money
      3. Work within the law

      Choose any two.
  4. Unleash the Lawyers! by l0ungeb0y · · Score: 4, Funny

    Fly my pretties, fly!

  5. Meanwhile: by Rei · · Score: 5, Interesting

    From MotorTrend's testing:

    Nine times out of 10, this first brake application and steering cut says most of what I need to know; up ahead are loopy black tire marks where a few notable sport sedans have already half-spun. As the arc of orange cones appears on the right, I straighten my ankle into the brake pedal. The 3’s nose barely sinks, I can lower it like a micrometer, as I’m gauging my stopping rate to within a foot or two. Very precise braking.

    They measured an average braking distance of 119ft, vs. 123 ft for the BMW 330i.

    Don't get me wrong, I have nothing against CR. But their testing mechanisms often seem really poorly controlled. Which can go either way - they found a 350 mile range for the Model 3 LR with 18" wheels, which is well further than normal. Their range measurement isn't a drive cycle, it's just a guy driving, which is obviously going to introduce a lot of randomness. One likes to hope that their braking tests are better controlled, but somehow I doubt that. They got hugely divergent braking distance results on the Model 3, with their first measure being around 130 feet, but others much higher dragging the average up.

    --
    Give a boy a gun and you arm him for a day. Teach him how to make a gun, and the whole metaphor breaks down.
  6. â"big flawsâ" by DontBeAMoran · · Score: 4, Insightful

    "Our testers also found flawsâ"big flawsâ"

    I see another flaw right there, but this one is not Tesla's fault.

    --
    #DeleteFacebook
  7. Hybrid brakes by b0s0z0ku · · Score: 5, Insightful

    Teslas probably use some combination of regenerative braking and traditional friction brakes with brake pads. This smells like the automated system isn't aggressive enough in engaging the friction brakes when the pedal is hit hard -- they probably prioritize using the brakes to recharge the batteries and not wearing out the brake pads. Maybe the software needs to be rewritten to prioritize friction braking when the pedal is pressed "suddenly."

    As far as the giant LCD, it's abominable. It intrudes into the passenger and driver seat spaces and is likely easily broken due to its design. I've often put furniture or even lumber into a car's front passenger seat -- in the Tesla, this would virtually guarantee damage to the screen. It's also not tactile and hard to use with gloves on in winter.

    The 2018 Leaf has a much more practical interior, even if it's not artsy-fartsy minimalist.

  8. Stop trying to make a smart phone with wheels. by Fly+Swatter · · Score: 4, Insightful

    The location of almost all of Tesla's controls on a touchscreen

    I want controls you can adjust without looking, and with gloves in the winter. Why is every car getting away from usability? It is a horrible trend.

    Also if the brakes are simply under sized, how is that fixed with a firmware update?