well for my 2 cents, it always takes a good balance for a good looking car with a fair amount of engine tuning.
This way you can almost have any car look good *ducks*
but the first thing i'm going to change on my car (if i can effort it in this life) will be BETTER brakes for my mx-5 (level 2 model, not the newest), as i set SAFETY FIRST, the brakes will be... well, you know already.
after that, (and a long time for learning the habbits of that car) would be a bit of engine tuning (a tbo, maybee...)
<<< let's toughts fly
yes, it's a nfs screenie, so what? i'm not that good im mesh-surgery, so i had to use that...
regards