Probably get shot for this but for me, it's very hit and miss with the styling of the 5, some look amazing but some look very ordinary, obviously that engine sounds great pulls like a train etc so in that regard it's the engine that wins out in the M5.

The e46 M3 I think looks better, CSL version sounds amazing and again I'll be shot, but at 1809 tax for both I'd have to have a V8 to justify it. Such a tough decision..... engine over looks / looks over engine.....

I have driven neither Ms, but I have driven a 5 series and always have owned 3 series coupes I probably shouldn't vote..... but aaaahhhhh........

It's got to be the V8.

Also if I was in the position, I could add an M5 to my classic policy straight away for just €50, whereas I'd have to wait another year at least to add the M3 to it!!