I'll tell ya, those well prepped ricers literally kick ash on the hill climbs and auto cross. Lots of power in a short wheel based light weight well handling(even from the factory) package. It depends on the driver in how well they actually perform.
My old school brute horsepowered ANIMAL is a ton more fun though ! And it SOUNDS BETTER ! AND I built it completely with my own 2 hands on a low budget !
We have a couple of gen 2 Camaro's that play and they do pretty darn good and run right with those Asian jobs. They are both pumpin' about 200 horse more than my junk, one's turboed and the other is runnin' FI. LOTS more money in their's than I have in mine.
The bad thing about building a G Machine is it's waaaaay too tempting to 'play' hard on the public highways. Been there done that, not advised. Limiting play time to Track Days and the like can scratch the itch.