It may be that BMW will not show true numbers lower than the M5 or M6...right now.
Plus, how many consumers even M3 owners really go out and match the auto rags 0-60 times on a daily basis. Spirited driving, Yes, pushing your car to the level of these mags regularly, No.
So really, what does it matter if you can go 0-60 in 2 secs when the majority of the consumers won't be doing it. All these numbers(0-60, hp, tq) have a marketing factor that causes many discrepancies and has to ride that fine line of attracting both sides of the fence to sell the car. Not saying it is right but BMW is in the business of selling cars whether we like it or not.
I hope when I get the New M3 it puts my M5 to shame. I am really hoping it does, I am in the minority consumer section that will push it daily.
We will see when it comes out.