I just watched my first episode - it was the one against the dirty south. I can see the appeal, and dayum those cars are fast. For me, it's kind of ruined a little by the fact that those cars are essentially straight up drag cars and have to be trailered everywhere. I think I'd personally enjoy the show if it was in cars that were driven there - cars like the majority of us have, I could relate to it more. No doubt one has to have a super fast car and be a really good driver, but it just feels...I don't know...too professional. Having said that, I am now watching another episode...
And for giggles, the adds I was shown (I watched it on youtube) - all 4 of them, were all about saving gas, getting better gas mileage, and driving responsibly because planet. The irony was not lost on me.