An excellent sports car, the 2007 BMW Z4 M Coupe has a lot of weird little quirks that take getting used to, such as learning how to control its cabin tech. Spend some time with it, though, and it will grow on you.
BMW has a strange history with its coupe versions of roadsters. The Z3 roadster got a coupe version in 1999, but it is generally considered to have been built by a renegade group within BMW. The coupe version of the Z4 obtained all proper corporate approval.
The Z4 M Coupe is very distinct from its roadster counterpart. The roofline, with its severely slanting back, changes the appearance dramatically from the convertible top. The front-end retains its muscular bulge.
There is little compromise in this sports car. For example, although it is a hatchback, it's strictly a two-seater in the grand tourer tradition, designed for two people to get away for a long weekend.