I do live in the south and have watched some NASCAR but it's not my favorite motorsport by far. When I first heard it was going to be included in GT5 I thought it could be pretty neat though. The sport is meh but I do actually like the cars. 800hp 2 ton beasts that aren't really a traditional race car. And I love how they still use that awesome old school technology. However the way it was implemented, especially with Zombie Jeff Gordon, leaves a lot to be desired, but that goes for all the racing in the game. I mean you have DTM, Super GT, WRC, etc., etc. and this is how you utilize it?
Anyway back on topic NASCAR isn't done so well in the game but I do like having some of the cars. They really nailed the sound of them and they are a lot of fun to drive. NASCAR rooms online can be a lot of fun with the right group of people. Those lobbies also tend to be the best moderated.