Coopers are ELECTRICAL hazards. I can't tell you how many I've seen that have had their full electric systems shorted out. Personally right now, I would get a Ford. Every damn Toyota model out there is going recall after recall, GM cars are okay but aside from really the Aveo there really is no small compact car from GM. I would never touch any 2001 and up Chrysler, so yeah...If not Ford, the Honda Civic is pretty decent. Or other viable solutions that I didn't list.
Mitsubishi Lancer- Low price for a sub compact car, starts off at a 5 spd manual, so you'd have to know how to stick it out with this one. Not hard to do though.
Honda Civic- You can get a hybrid Civic, but if you want small then look away because this thing gets bigger everyday!
Ford Focus- Probably the smallest I'll list aside the Aveo.
Chevrolet Aveo- Small, but very cheaply made.
Honda Fit- Drives pretty decently, big though.
Ford Fiesta- Fun little driver, hatchback like others listed.
Mazda 2- Not out yet, but basically just like the Fiesta.
Mazda 3- VERY dependable. Built pretty well, looks pretty good, but maintenance costs suck on it.