This is a bad ass scale model of a V4 twin cam engine and the most impressive thing about this model engine is the fact that it actually functions. Compared to an inline four, the advantages of a 90° V4 engine include compactness, narrow width, and perfect primary balance giving a smooth and nearly vibration-free operation. Although it has not found much popularity in cars it was often used in motorcycles by manufacturers such as Ducati, Aprilia, and Honda.
That was nuts. Wait until you see the next video below.