Bill Thomas was one cool cat and aptly named his featherweight Chevrolet race car after the world’s fastest land animal — the cheetah. The car wasn’t perfect though, and cabin heat was one of the major issues, leading several teams to cut the roofs off their cars for better ventilation. To help you keep your cool this winter, we’re unveiling a fresh new T-shirt design featuring the iconic Cheetah race car. But for what it’s worth, we’d advise keeping your top on at all times.