For UK cars, year and model pre 06 doesn't matter, only main difference being GT pack or not (leather, electric seats, BOSE sound system, cruise control).
As for your other cars, I agree with Sarnie. The Mini Cooper S Works and Golf GTi on the A404 on the way home will testify that........
The 06 model has same power as current Boxster and Cayman S from Porsche, is MUCH better looking than ANY BMW and they're not a common sight. Do it, what more could you want?!
BTW