From the WTF files of Youtube comes this custom built (obviously) motorcycle powered by none other than a V12 plucked directly from an Aston Martin. When it comes to transplanting large car engines into motorcycles, Boss Hoss has been the go-to name with its V8-powered customs, but this creation takes it one step further.

We don’t know much about the build, but really, the video speaks for itself. Watch for yourselves as the unsuspecting person behind the camera gets a treat as the owner starts it up and rides away. And what a treat it is, as the Aston engine sounds completely menacing without the convoluted emissions equipment it normally carries when it’s strapped to four wheels. Enjoy!