go for it!
SLK = no good quality
TT = so boring and so many of them, and you can get them in Diesel version = enough said
Z4 = 3.0 litre version are nice can't argue that... but do you really want to become a geezer in a bm?
(that put me off the Z4, for now)
FINALLY!
Do either of them carz have such a great forum as the Z community here = NO!
so when are you getting your Z