off topic but M3 or 540 6spd?

since everyone's on the topic of the new M3,

I am curious as to what everyone else would think.....since most of the dealers I've talked to are adding a 3-5k premium on the M3, that puts it up there with a 540 sport 6-speed v8. Both will be around 50-55K.

So, at that price, does it not make you wonder getting the 540 6spd instead? I know it's not an M-car and not as exclusive, but damn, outside the M5, the 540 sport has to be one of the best sedans out there (282hp 0-60 in 5.6 secs)? (AND it's available in almost any color you want)