The NASCAR operation of the racing team Team Penske is a unit based in Mooresville, North Carolina, US. The team fields Ford Mustangs in the NASCAR Cup Series and has won a total of four drivers' championships and over 170 races combined over both series. The team has also used the following names: * Penske Racing South: formerly used to differentiate the NASCAR operation from its open-wheel and sports car racing operation that was based in Reading, Pennsylvania; the name ceased to be used when the entire operation moved to North Carolina. * Penske-Kranefuss Racing: used from 1998 until 2001 when Michael Kranefuss, who had previously fielded a car with Carl Haas as a partner, merged his team with Penske's and brought Jeremy Mayfield, his driver, into the Penske fold in car No. 12. The partnership ended after 2001, but Penske continues to run car No. 12 to this day. * Penske-Jasper Racing: used in 2004 and 2005. Roger Penske had been supplying Jasper Motorsports with engines for several years and bought a share of the team so he could run its No. 77 for Brendan Gaughan as part of the Penske team. The partnership dissolved after Penske gave up his stake in the team and fired Gaughan. (en)