It is true that the SL is not quite aiming for the same market as the 911 - it's not really a true sports car - it's a luxury GT - originally the SL (Superleggera) was a lightweight sportscar much like the Mazda MX5 (Miata in the US) - but over the years it became a heavier GT type of car - the Porsche 928 was closer to what the SL is all about.