After owning a Prius(*), I specifically went looking for an old vehicle and found an old, 1988 Jeep Wrangler that I'm in the process of fixing up. You see, you can't fix up or work on a Prius, or most cars these days and I very much missed doing that. The Jeep is carbureted with no computers whatsoever and I'm loving it because I have control over what I want to do with it. This summer, I'm going to make a project out of replacing the dash and user controls with Arduino and Beaglebone controllers and displays. It's going to be so much fun I can hardly stand it. I'll probably put an after-market throttle body fuel injector on at some point to help with the fuel delivery at least.
(*)Note that I didn't buy the Prius for the mileage - rather than I'm a computer geek and I thought it was cool. This Prius did not have the stuff they have now tracking your every move.