My 2011 335i Steptronic, track car. M3 control arms front/rear, ECS Tuning rear trailing arms, Bilstein HD's, StopTech brakes, Dinan camber plates, FBO's with Cobb Stage 1 tune, Corsa exhaust, 18x9 sguare, Hankook R-S3's. 10 track days so far this year, with another 6 scheduled. Drive to the track, tear it up all day, drive home in comfort. Most excellent.