Basicly its a lightweight version of the M3. Carbon bodyparts to reduce weight, I believe it also has more power, better handling, semi-slick tyres(as far as I know), has no A/C unit (might be optional).
Wanna ask, based on the picture, which water line will be the inlet for water into turbo? and how about the oil line also? is the one showing in the picture is the inlet for oil? or the one at the bottom?