Answer
I know that...bmw has3 series, 5 series, 7 series,6 series, x5, x3, z4,so thats 7?mercedes hasc,e,s,clk,sl,cl,cls,ml,gl,slk,slr,r,g,thats 13for both automakes i know that for each model their are diffrent engines you can have in each car, theirs also convertibles for some, and wagons.