Hi Gustav I traded a 2008 S63 (about 45,000 miles) for my Alpina. The S63 had the small 6.3L 518 HP but it would not put the power on the road, just burned the tires off, even if AMG improved that issue, the Alpina is a world away from it IMO. The Alpina is a drivers car, the S63 is a look at me car, albiet a great car, but no Alpina. The S was NOT that fun to drive. Just one persons opinion from behind the wheel of both.