The Ferrari is powered by a 4.5 litre V8 engine and holds the record for the highest specific output naturally aspirated engine in any production road car. The Ferrari also feature smarter electronics, with a computer system so advanced that it enables you to drift. The Porsche 991 GT feature a 3.6 litre flat-six direct fuel injection engine, and is also the more technical of the two with features like rear wheel steering. But the only way to find out which of the two is faster is to watch the video below, so click away!