I like the rims I would just a smaller size by the front 15's then 18's in the back grip+weight put the radiator in the trunk and extend the tubing increasing more coolant that keeps it cooler, then a strut on the motor and in the chassis then lightweight seats and a carbon fiber sunroof
Where do you live? Not a spec of rust, so clean. I bought mine two months ago and the body is in good condition but the frame and underneath needs some love, welcome to New England