Matt Kenseth Race Day Car Flag Savor the adrenaline of Race Day with officially licensed Matt Kenseth Race Day Car Flags from the ultimate sports store! Show your Matt Kenseth devotion with authentic Nascar Race Day Flags featuring Matt Kenseth Auto and Tailgating Flags. Nascar fans, score your new Matt Kenseth Race Day Car Flag from our Nascar Shop and receive your new Matt Kenseth Gear in time for the next big race. Go Flatline!!