1.) Real Xenon headlights.
2.) More freakin power.
3.) Real satin/brushed aluminum interior highlights where the plastic is.
3.) Steering wheel mounted audio and cruise control. The stick cruise control is dumb.
4.) Real side engine vents.
5.) Different wheel design.
6.) A good and cool looking rear diffuser.
7.) Get rid of the ridiculous huge steering wheel, and give it the proper small diameter sports car steering wheel.
8.) Lexus like lighting on the gauges and instruments.
9.) Better bucket seats, like those on the Viper, real aggressive ones.
10.) New vibrant exterior colors.
11.) LED rear tail lights.