The Sam's Town 250 is a NASCAR Busch Series race that takes place at Memphis Motorsports Park. The National Association for Stock Car Auto Racing (NASCAR) is the largest sanctioning body of motorsports in the United States. ... NASCAR Busch Series logo The Busch Series is a stock car racing series owned and operated by NASCAR. It is NASCARs second division (often compared to Triple-A baseball), and is a proving ground for drivers who wish to step up to the organizations top level, the Nextel... Memphis Motorsports Park is a race track located in Millington, Tennessee, approximately twenty miles north of downtown Memphis. ...