OK, it's not a Monza front end. It's a custom fibreglass nosecone titled "concorde", designed my a man named Arcadipane. I forget his first name, but it might have been Mark. Secondly, the car as it is now is not correct to any of the movies. It has the tanks in the back so it's supposed to represent the car as it was in the second film, but, in that film the part
of the front nosecone, below the square channel running across the front, under the headlights is missing but it is present on the car as it exists now. It could be accurately described as the airdam part of the nosecone. It's something you'd easily miss as the majority of the nosecone is wiped off in the opening scene when Max engages the blower & rams up the arse of the Landau. It's a little thing, but I thought it worth pointing out. (the car looks better with it on though)