Originally Posted by Dirk McGurck

And it's not just fitting the engine in. Nissan is very particular with where the engine sits in the car, so if the VR fits, but sits a foot towards the front plus the weight of the turbo system, you now have poor weight distribution. Also, air flow for a turbo system is different, so all of the aero, including the shape of the hood and bumpers and where everything is inside the engine bay, would have to be reworked.