Jimmie Johnson Making Quite a First Impression On IndyCar Rivals Three-time Indy 500 winner Helio Castroneves is among those who believe the 7-time NASCAR champ will 'figure it out.' Chris Owens 2020 Jimmie Johnson, a seven-time NASCAR Cup Series champion, is racing in the NTT IndyCar Series this season for Chip Ganassi Racing. Johnson, 45, is planning to race on road courses and street course for Ganassi in 2021. Four-time IndyCar champion Dario Franchitti is among those who are impressed with how quickly Johnson is grasping what it will take for him to be successful in Indy cars. For the first time in two decades, Jimmie Johnson is not chasing a NASCAR Cup Series championship—or any championship, for that matter.