Mini cooper old shape, super charge it, that will move like a go kart you can chuck around all day long!
Just don't go on motoways you will go deaf! 
Have you seen the price of a decent one?!
Believe me if they were cheap I'd have one, they're SO much fun.
haaaaa just read your first post ironic LOL!
TBH in my day we would buy wrecks and stick new engines in them to find a dog and do a transplant you could do anything with it I've seen V8 in a mini off a drag track ,I was floored at the time he got on 1/4 mile!