Techie, Wrench-head, or Both?

An Anonymous Coward throws this spanner into the works by asking: "OK, a response to another Slashdot question has made me wonder... Can techies fix cars? I know computers very well, I can fix VCRs, and I can wire home theater systems but I don't know the slightest thing about my car. I am not sure I even want to but I thought some other Slashdoters might want to way in on that. Could it be the whole "getting dirty" thing with cars? What do you think? How well do you know the inner workings of that thing that sits in the driveway?" I used to think I liked taking anything apart, not just computers, but after spending a few frustrating afternoons maintaining my car, I figured such things were best left to the professionals. However, I may be a minority in this, based on the responses from the last auto-related question.