Originally Posted by Marmot

I swapped from the stock 07 V8 Vantage size to the post 09, I think I plugged in 2010, V8S size and it is wider and taller all around, with better rim protection on the Michelin Pilot Sport 4S's.Side benefit, your speedometer will be more accurate. At least in my case it was. It's a noticeable difference driving and cosmetically. I don't recall the numbers off the top of my head, I think Redpants has a blog post about that up-sizing option.