November 17, 20205 yr Moderators Busch and Truex spent much of Monday testing the new-design Cup car at Charlotte, the first involving more than one car.Busch drove a car prepared by Richard Childress Racing in collaboration with NASCAR, with an engine built by ECR Engines, and was previously tested at Auto Club Speedway and Dover.Truex drove a car built by Action Express, with a Ford-manufactured engine, and tested by ...Keep reading View the full article
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