2004 Toyota MR2 Spyder 2dr Convertible (1.8L 4cyl 5M)
The best car purchase I've ever made! Fun, fun, fun! Drive it everywhere, and always take the long way to get somewhere. Can't keep a tank of gas in it because I miss it if I don't put 50 miles a day on it (and I don't have a commute). I take it for all my grocery shopping (including Costco) and am not the least embarrassed about groceries riding shotgun. I typically get 30 mpg in mixed (mostly city) driving, and would probably get better if I could prevent myself from having so much fun while driving. Got 34 mpg driving from Mountain View to Fresno once (a steady 80 mph--don't tell the CHP).
The overall driving experience. I have an SMT, and the transmission is such that I can decelerate quite well as I approach red lights. I don't use the brakes much because of that, until I actually have to stop.
Everyone says storage, but I can honestly say, I haven't missed the trunk! I just travel more lightly and leave the kids at home.