Bought a black 20k car in Chicago and drove it back to Dallas, seems to run great and everything works, I'm loving it, but... The slow down 1-6 light comes on sometimes, even when I first start the car, sensor? It seems to never come on when you'd think it might, like when I beating the hell out of it on Central. And, does this car have a rev-limiter, or should I be extra carefull shifting so as not to overrev it. Car still has the original tires and orig. owner did the 30k service.