thanks mate
I too was in your situation but unlike you i purchased the TT. I choosed the TT over the 350z because off the 400 road tax and the mpg the 350z made.
I owned the TT for nearly 2 years now. I done a few modification on the engine now and realised that is was doing the same mpg as a 350z, and with the tax dropping to 245, i cant lose there