Well, I've had my fiesta st for 3 years, and in that time it has lost ££££ in value.

I'm looking to trade it in for a BMW.

I'm thinking, that I can now get away with having 2 seats, and always liked the Z4.

Does anyone know how to tell the difference with them? As far as I can tell, they produced a 3.0 engine (what I'm after) but they also revised this engine and gave it more power etc.

I want to get the best I can for my cash (obviously) and wondered if anyone had any pointers?

I'm going to try the BMW sites to see if I can find anything out, but thought I'd try here as most of you have BMW's now!

Cheers!