Compared to every other car i've driven the M3 feels very good at 160+ on the autobahn, excellent even. Tyre pressure makes a big difference at high speeds, too high pressure can give that 'floating' feeling.
2011 AW E90 M3 DCT - Current
2010 JZB E90 M3 DCT - Sold
2009 6MT E90 LCI 335i M -Sport - Sold