IMO there is a massive difference between the older 350z and the 370z. The 370 is tigher, grippier and has way more grunt than the 350. Its just better in every respect, you just dont realise how much until you get it somewhere like a track or good driving roads like North Wales. Well worth the step up if you have the cash available
Thanks for the feedback, Chris. I did drive the car last year at the Nissan Race Academy at Silverstone and was very impressed, but it is always good to hear from someone who has parted with their cash and bought one!