Subaru Impreza(Photo: Subaru)

When it comes to auto racing, it's hard to think of a more challenging or exciting sport than rallying. Run around the world on just about any surface and in all weather conditions, it's a test of man and machine versus nature and the clock. Whether it's a fast-paced stage on the World Rally Championships or the trials of the Paris-Dakar endurance rally, we've sorted through the victors of past and present to bring you the 10 greatest rally cars of all time. Watch the gallery to begin.