Originally Posted by Autobahn335i
The two main advantages of the M3 over the standard E9x lie in the handling and, arguably, in the engine.
Come on.. there is NO arguing about it. The S65 is a far superior engine and that is not debatable. Can the 335's engine be modded for more power than a stock S65? Sure. An S65 can be modded too. However, the power that can be created through modding has little to do with the quality of the engine. Debate which car is the better performance "value" all you want but let's not start silly debates on which engine is better.