if the car is already unreliable, and you want the handling of the Mini, then just buy one that is a couple of years old and tune the crap out of it - a lot cheaper and at least you know the parts you put in will last for a bit...
but as it is at $55k, yeah really hard sell...when you can get a mint used one at $20k and spend $5k to bring it up to the level of a JCW
the aftermarket is a wonderful thing