Wow, sounds like you want to spend a pretty penny on your DAD's car! Heehee, just bust'n your balls. Hey, but if you got it, why not flaunt it!!!
Well, The Tein Coilovers will make your ride stiffer, but you'll be able to take turns faster and make the entire car just handle more like a sports car...
Bridgestone SO-3 ... UNBELIEVABLE, they stick like no other!
and if your rims are too wide, just get some spacers, but that sounds like it'll work :-)