Complex sentence: In addition to the regularly scheduled shows there are specialty shows, including the GM Nationals, the Ford Nationals, the Chrysler Nationals, the Truck Nationals, Corvettes at Carlisle, and the Import/Kit Car Nationals.
Split into simpler sentences: In addition to the regularly scheduled shows there are specialty shows. These specialty shows include the GM Nationals, the Ford Nationals, the Chrysler Nationals, the Truck Nationals, Corvettes at Carlisle, and the Import/Kit Car Nationals.