Powerful New Mercedes-Benz V6 on the Way

The current 6-cylinder SLK, while wonderfully refined and extremely sporty, is underpowered unless tuned to AMG specifications. The SOHC 3-valve power unit only develops a meager 215-hp in a market segment that includes the 225-hp BMW Z4 3.0, 240-hp Honda S2000 and 287-hp Nissan 350Z Roadster.