Adding a spoiler is a great way to improve the appearance and aerodynamics of a vehicle, but could it do more harm than good? A spoiler is a wing or aerofoil attached to the back of a vehicle and ...

Have you ever seen a Toyota Corolla with a DTM-style carbon-fiber wing affixed to the trunk—probably with extra holes drilled because they messed up the first time? It’s kinda gross. But it does seem ...