First conceived in 1961 for the T7 prototype by Audi wagon

We weren't so loyal of the order of this train's qualifications for WEOTD position, not because it doesn't portion up in the awesomeness specialty but because it's damn near impossible to number out whether those hairsplitter Porsche engineers think of completely bemused-slip-of-paper redesigned the affair repeatedly (keeping only the general design, escalating hardware, and the drag centers). If we decide that the combatant six-banger from Stuttgart has been in essence the similar tank engine with a constant sequence of upgrades, then its line stretches all the way spinal to the premature 1960s. We'll let tipster Jason think about in with his arguments after the jump...Says Jason: First conceived in 1961 for the T7 example, and later installed in a 911 in 1964, the little 2.0L flat six turned out a whooping 130 hp. Fast forthright to 1998, and the last air-cooled 911 (turbo) was cranking out 400 hp. The race flat-6 motors in the 935 were cranking out in excess of 950hp with water-cooled heads. But this electrically powered didn't just power 911s, it covers 914s, 959s, and a veer of race cars... including the 934, 935, 956, 962, and Porsche's first Indy car in the 1970s, along with the 936... Not only was this petrol-powered in a thoroughfare car for 34 centuries, it has won races and championships for Porsche for nearly as long... including 24hrs of LeMans, 24hrs of Daytona, 12hrs of Sebring, Targa Florio, MonteCarlo, and Paris-Dakar (Twice). Does it need mentioning that the 956 with a flat-6 "