The lambo 640LP roadster is as fast as the coupe, which is faster than the SLR. Unless they add some power or keep weight down, I dont see how the SLR roadster can be any faster, unless their 722 moniker on the roadster denotes the power, and not a moment in history.

I would love the roadster SLR to trump the competition in terms of power and speed, however, there is some pretty darn good competition out there. MB awoke some sleeping lions with their power games.