I live just outside Charlotte, NC and can vouch for this area being devoid of any solid Sprint Car racing. As mentioned above, USCS winged 360s come through Gastonia NC & Lancaster SC 2-3 times a year. However, car counts can be an issue. Focus midgets run pavement at Hickory and used to in Concord, but again you usually see 8-12 cars. I have to escape to see any non wing racing. I will be at Salem next weekend for Silver Crown & Eldora in September for 4-Crown.