Originally posted by boilers
I think some 3.2L engine in MB line up will be replaced by the 3.5L engine. So it's not bulit specifically as a truck's engine. I heard that the new E 320 will be replaced by E 350. And they even have the SL 350 and S 350 in Europe right now.
Mercedes Benz is built more as the touring car than a track car. I always love MB 
And even though Z4 is a really nice sports car, I doubt most of its buyer will even drive the car hard. 
I didn't know they offered an SL350 or S350. BTW, it's a 3.7l engine, not a 3.5l.