I know someone with an MR2 turbo, he loves it, handles like a go kart, cheaper than you think to insure.
Not so great MPG and I guess just normal Jap car running costs for that size car.
I hear that once an MR2 starts to get a little bit happy at the rear they can be hard to keep on the road / correct.
A Starlet on the other hand does not have to be an expensive car to run. Mine was standard other than springs and an air filter, it was great on fuel and I never had a problem.