Racing cars used to be the sole province of men, big dudes standing around an open hood talking about football and wrestling while fumbling with spark plugs and crankshafts. Well, times have changed. These days, some pretty hot female drivers are making names for themselves on and off the track. Here are 10 smokin' babes who don't mind putting the pedal to the metal and getting a little greasy. Complex ranks the hottest women in auto racing.