Yeah, just a bit slower. As you know it's the lower weight & CG of the Z4 that makes up the difference in HP vs. the M3. From what it appears that they have done with the Z4M Coupe's suspension and rigidity, this is going to be a hot car - looks, performance, everything. I think this one is going to join the E30 M3, 850, CSL, etc. in the BMW most desirable list.
As I have said B4, I'm a huge Z4 fan, and I love drop tops. But the coupe has me rethinking my Z4M Roadster plans.... [headbang]