It's no e90 M3, but I think this is a pretty cool car. I have read about this company in the past. ECU/exhaust and nice supesnion upgrade with 4yr/50000 mile warranty. Then again, for that price you could get an e90 (while they last).
http://www.motortrend.com/roadtests/...est/index.html
http://stasisengineering.com/signatu...ies-s4-30-2010