Roadsters are cool. I'd swap in an SR20det and try and fab up something so that the little hoodscoop works. French the tail lights and maybe replace them with the tips off some pointed Chevy Impala type lenses. Shave the corner lenses, emblems, door handles, maybe even seal the doors up, it is a roadster after all. And some flares of course.
Wheels, nothing over a 14 so they can be auto-x beefy. Panasports or clones, but powdercoat them to match or contrast the body. Lexus, I think, has a really cool orange out right now. It's kind of a burnt candy pearl but it's not exactly low profile.