Originally Posted by Nizer

Street cars are made for the street. Buy a race car for the track. You'll be safer, faster, and have more fun. Most eventually figure this out.

New M4 with manual transmission is looking like a very attractive for street option.

Originally Posted by Quikag

Looks pretty damn nice really. lower weight, broad torque curve, six-speed manual, etc. As mentioned above, the major x-factor is overall reliability and cooling system ability for aggressive track days.

The new twin turbo V8 M5's at COTA for the BMWCCA event earlier this year were going into limp mode within a lap or two for the charity rides. That wasn't impressive at all to me. Then one of the BMW Performance Academy instructors was trying to talk me into doing a driving school at their facility (in Alabama I think) and I laughed to myself on how quickly I would put those cars into limp mode with how I drive. No thanks.

It does say in the above picture 'race track capable engine and transmission cooling.' TBD I guess.

Originally Posted by kosmo

As a former m5 owner it pains me to say this but the new slate of m cars esp the 5, x5, x6 are crap.