Does anyone know of any websites that document ring times, and specifically for me i guess, document Bmw E46 times.

Part of me wants to buy an M5, but a BIGGER part of me says keep the E46 325Ci and try to improve on my times as that will be a bigger challenge and teach me more than just having more power available.

What to do? Knowing people have pedalled standard cars around there far faster than me would probably make the decision for me.