Hi
Just signed up this evening and, since I've had both, thought I'd chip in.
Had 57 plate Mk2 TT roadster 2.0 Tfsi FWD from about 18 months old for 3 years. Swapped to MX5 for 18 months and traded to a 2009 Z4 23i at the end of 2013.
For me, the Z4 is the better, more complete and nicer car...