Okay.
My brother was looking for a new car and had his eye on the M Roadster for quite a while.
Only problem with the car is it looks very dated, and isn't stand outish enough from the rest of the Z3 models in the range.
So he considered the Z3M Coupe. He looked at a few, and then considered the coupe. He hasn't looked back. Saw one with good mileage, bought it there and then. Sure, it has real marmite looks, and isn't "beautiful" by any stretch, but:
Blue, 50k, FSH - £13k!
The car is a beast! Massive straight line performance, silly easy to get the tail out, and so composed when you do. Staggering levels of grip, beautiful interior, real road presence.
Funnily enough, he'd just come from a TT he'd been borrowing for a couple of weeks, and you wouldn't believe how much better a car it is.
Personally if I had to have a roadster for similar sort of money, I'd probably look at the Boxster instead- what you may lose in straight line performance, you'd gain with the badge, chassis, and overall package.