I voted for Porsche 911 Turbo..but hard a hard time between that and the F40. Porsche has had turbos on their production cars (the 911 family) longer than pretty much anything up there (Nissan Z is up there with Porsche in terms of a single model line being availe with a turbocharger)....and they demand respect. C'mon..out of all the cars up there, which one got the nickname "The Widowmaker"? The Porsche...