Is there a difference between the  "Sport button on" position vs. "Sport position on" with Sportchrono? If not, I don't see why I need Sportchrono, since in my last car  I rarely used the sport plus position. Plus, I don't track the car.

BTW, this car is a temporary car until I know if I want a 4 model.  Unless the 4 model totally wows me ( noticeable  wider in the rear, new front fascia, maybe even more power?), I will stick with rear wheel drive. It is so much more fun to drive than my previous 4s. Smiley