However, an engine failure at Kansas resulted in him being eliminated at the Round of 12 of the Playoffs, the first of four straight DNFs for Larson, relegating him to an eighth-place finish in points. In 2018, Larson returned with his Credit One Bank/DC Solar Chevrolet Camaro ZL1. Despite being winless, he made the Playoffs by staying consistent in the regular season with four second-place finishes, eight top-fives, and 14 top-10s. Larson had a dominant car at the Inaugural Charlotte Roval race but was caught in a multi-car pileup in a late restart that also involved Playoff contenders Brad Keselowski and Kyle Busch. His heavily damaged No. 42 car took advantage of Jeffrey Earnhardt being spun out by Daniel Hemric on the final lap and limped across the finish line in 25th place, securing him in the top 12. Larson experienced further bad luck at the fall Talladega race when he blew a right-front tire and spun out. He finished 11th in the race but was docked 10 driver and 10 owner points after the team violated the damaged vehicle policy by using metal tabs instead of fasteners and/or tape to repair the torn right front fender. Despite finishing third at the fall Kansas race, Larson was eliminated in the Round of 12 of the Playoffs. He finished the season ninth in points. During the 2019 season, Larson made history by becoming only the third driver to win the Monster Energy Open and the Monster Energy NASCAR All-Star Race. Larson once again made the Playoffs, his 4th straight appearance. Right after advancing past the Round of 16, Larson broke a 75-race winless streak by winning at Dover after qualifying second, immediately advancing to the Round of 8. On April 13, 2020, NASCAR and iRacing indefinitely suspended Larson after he used a racial slur during an iRacing event. In a statement posted to Twitter, Chip Ganassi Racing had announced that they had suspended Larson without pay. As a result of his actions, McDonald's, Credit One Bank, Advent Health and Fiserv terminated their sponsorship of Larson. In addition, Chevrolet suspended its relationship with Larson indefinitely. CGR terminated their relationship with Larson the following day. On April 27, 2020, it was announced that Matt Kenseth would fill in for the remainder of the season. In addition, NASCAR granted him a waiver for eligibility in the 2020 playoffs. CGR has occasionally run an additional part-time entry for research and development or for rookie drivers making their debut.