A4's are pretty mod-able. You can really open them up, especially if you change the turbo and so on. There is one in town that is very very fast.
There is also a guy in town with an s4 running high 11's. On our closed course, he put 5 car lengths on me from 30 to 120, and he weighs 23434562425 lbs.
Also, speaking of saturn.. I have a nitro satty. So much wasted money into it too. Headers, ported intake manifold, head, full exhaust, cams, completly rebuilt engine. All that and the tranny broke, something about the differintial pin blew threw the block
It's a 93 SL2