7-time NASCAR champion Jimmie Johnson to retire after 2020

FILE - In this July 29, 2016, file photo, racing legend Richard Petty, right, stands with Jimmie Johnson (48) in the garage area of Pocono Raceway during practice for the NASCAR Sprint Cup Series Pennsylvania 400 auto race in Long Pond, Pa. Seven-time NASCAR champion Jimmie Johnson says 2020 will be his final season of full-time racing. The winningest driver of his era will have a 19th season in the No. 48 Chevrolet and once again chase a record eighth championship. Johnson made the announcement in a video posted on social media, Wednesday, Nov. 20, 2019. (AP Photo/Mel Evans, File)

FILE - In this Nov. 17, 2013, file photo, Jimmie Johnson, center, his wife, Chandra, and his daughter, Genevieve, celebrate after he won his sixth NASCAR Sprint Cup Series championship, in Homestead, Fla. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/Terry Renna, File)

FILE - In this Nov. 21, 2010, file photo, NASCAR driver Jimmie Johnson celebrates after winning his fifth Sprint Cup Series Championship, in Homestead, Fla. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/Terry Renna, File)

FILE - In this Nov. 19, 2006, file photo, 2006 NEXTEL Cup Series Champion Jimmie Johnson celebrates following the season finale Ford 400 auto race at Homestead-Miami Speedway in Homestead, Fla. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/David Graham, File)

FILE - In this Nov. 18, 2007, file photo, Jimmie Johnson, center, celebrates after winning the NASCAR Nextel Cup Series championship in Homestead, Fla. NASCAR CEO Brian France is at right, and Nextel chief marketing officer Tim Kelly is on left. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/Alan Diaz, File)

FILE - In this May 17, 2003, file photo, Jimmie Johnson, center, celebrates with his crew in victory lane after winning The Winston, NASCAR's all-star race, in Concord, N.C. Seven-time NASCAR champion Jimmie Johnson says 2020 will be his final season of full-time racing. The winningest driver of his era will have a 19th season in the No. 48 Chevrolet and once again chase a record eighth championship. Johnson made the announcement in a video posted on social media, Wednesday, Nov. 20, 2019.(AP Photo/Chuck Burton, File)

FILE - In this Nov. 22, 2009, file photo, Jimmie Johnson, left, raises the trophy with NASCAR chairman Brian France, right, after winning the NASCAR Sprint Cup Series season championship at Homestead-Miami Speedway in Homestead, Fla. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/Chuck Burton, File)

FILE - In this Nov. 16, 2008, file photo, NASCAR driver Jimmie Johnson and his wife, Chandra, celebrate after he won his third NASCAR Sprint Cup Series championship, in Homestead, Fla. Jimmie Johnson is the latest NASCAR superstar to climb out of his car, with the seven-time champion announcing Wednesday, Nov. 20, 2019, that 2020 will be his final season of full-time racing. (AP Photo/Terry Renna, File)

FILE - In this Nov. 20, 2016, file photo, Jimmie Johnson celebrates his NASCAR Sprint Cup auto race and season title win, in Homestead, Fla. Seven-time NASCAR champion Jimmie Johnson says 2020 will be his final season of full-time racing. The winningest driver of his era will have a 19th season in the No. 48 Chevrolet and once again chase a record eighth championship. Johnson made the announcement in a video posted on social media, Wednesday, Nov. 20, 2019. (AP Photo/Terry Renna, File)

FILE - In this Nov. 10, 2019, file photo, Jimmie Johnson waves during driver introductions prior to the NASCAR Cup Series auto race at ISM Raceway in Avondale, Ariz. Seven-time NASCAR champion Jimmie Johnson says 2020 will be his final season of full-time racing. The winningest driver of his era will have a 19th season in the No. 48 Chevrolet and once again chase a record eighth championship. Johnson made the announcement in a video posted on social media, Wednesday, Nov. 20, 2019. (AP Photo/Ralph Freso, File)