Ha - can't belive this thread has been revived after 12 months!!!!
Had the car for a year now - i find Normal setting best on the autobahn and just for info my car also hits the limiter at 270 kph (168mph)!
2011 AW E90 M3 DCT - Current
2010 JZB E90 M3 DCT - Sold
2009 6MT E90 LCI 335i M -Sport - Sold