That means, according to author Georg Kacher, a 3.9-liter, quad-turbo flat-eight engine with 650 horsepower. Build materials are still slated to be a hodgepodge of materials including aluminum ...

It's incredibly unlikely there are two quad-turbo V12 engines being developed in the world at the same time, let alone in Italy, so it's a safe bet that the video at the bottom of this article is ...

and we discovered this all-asphalt monster quad, the creation of French car and bike tuner Ludovic Lazareth. The Lazereth "Quadrazuma" is powered by a Yamaha GTS 1000 4-cylinder engine ...