Jimmie Johnson, Richard Petty
Racing legend Richard Petty, right, stands with Jimmie Johnson in the garage area of Pocono Raceway during a 2016 practice. Johnson said 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. (Mel Evans / AP Photo)