wicked vid of the M3
I'm not sure that roadster shot is the new one. It definitely does not have a retractable roof like the description says. It looks pretty close to the E85 hardtop cover. If you look at the back, there's really no place to store a folding hard top and i'm having a tough time envisioning a feasible way to retract it and store it the way they do with the soft top. Besides, i think we still have 4 more years until the Z4's lifespan is up.