is it worth spending that bit more for a 2007 or would a 2006 be OK? Its just a sunday and sunny evening plaything we're looking for and to come along to some of the meets. I've heard that the engine in the 2007 model is 80% different. Is this an advantage? The interior sounds similar. GT pack available on both. The Mrs thinks it might be better to get the newer model, please advise...........