Roger Penske on Thursday added the most prestigious street race in North America to his portfolio with the purchase of the Grand Prix of Long Beach. Forsythe bought Kalkhoven’s shares earlier this year amid reports both Formula 1 and NASCAR were interested in North America’s longest-running street race. Forsythe then turned around and sold the entire package to Penske Entertainment, a deal that ensures the Southern California race remains an IndyCar event at least through its contract with the city of Long Beach that runs through 2028.