BMW E46 M3 Of course, all it takes is a glance at the ... In giving the E46 its S85 heart transplant, 2M Autowerks took output from some 333 horsepower all the way up to 507 horsepower.

Taking the E60 M5’s extravagant S85 V10 engine as a base ... the undoubted highlight of the new M3 is the engine. Sticking to BMW’s ideal cylinder capacity of 500cc, an idea first seen ...