Complex sentence: The SL's wheelbase was stretched and the car received a fixed roof some feel the SLC suffered in terms of styling, being only a very large luxury coupe built as derivative of an SL and not of S class.
Split into simpler sentences: The SL's wheelbase was stretched and the car received a fixed roof. Some feel the SLC suffered in terms of styling, being only a very large luxury coupe built as derivative of an SL and not of S class.