Supercar spotter Marchettino this time spotted something quite special. This is a Maserati Quattroporte prototype, a test bed for the new model set for debut at the next Geneva Motor Show. Based on what we see in the video, the car will get a nose job and the rear-end will be revised too. But fortunately it seems visual changes are not that heavy. The QP is a fantastic looking car and Maserati shouldn’t mess with it. The Italian sports saloon also gets a new V8 engine.