I was on supercars.net today and I have a question about something. Take the 2001 BMW E39 M5 for example, under specs it says the configuration is V8, (which I always though v8 meant 8 cyl's and v6 meant 6 cylinders, etc.) and that the valvetrain is a DOHC 4 valves/ cyl!!!!! So, I guess my question is what exactly does v8, v6, or v4 mean??? And is there even a car with more than 4 valves/ cyl's???? Wow! You think you know something, and then SMACK, you find out you don't!!!