Win on Sunday, sell on Monday. It’s a marketing motto nearly as old as racing itself, but while today’s NASCAR stock cars may have about as much in common with the cars they represent as a Halloween superhero costume from Walmart will actually give your kid superpowers, NASCAR remains the biggest spectator sport in America. So you can imagine that participating automakers would think themselves foolish to pass up the opportunity to make the connection in fans’ eyes to cars they can actually buy at their local dealership. Funk Flex