FULL MUSTANG V 370Z COMPARO @ INSIDELINE.COM: www.edmunds.com When we last left the 2009 Nissan 370Z, it had just laid a drubbing on BMW's little 135i. We then proclaimed, "The 2009 Nissan 370Z raises the standard for the sport coupe segment to a new level of affordable excellence." Time to get more serious. It's V8 time. Who's in? Let's see, no Camaro, and a Challenger is not available (don't ask), so that leaves the freshly updated 2010 Ford Mustang GT, a car whose very existence is predicated upon wallet-friendly performance. Perhaps a reinvigorated veteran can take down the newly crowned king. The particulars might differ — four seats versus two, V8 versus V6 — but the mission is the same. And the 2009 Nissan 370Z and 2010 Ford Mustang GT are priced closer than you might think.