This car was a Holden HQ LS Monaro, two door, either a straight 6 or V8, 1972 model. The car is described in the film as being a "Pursuit Special", although the only real external indication of it being an MFP car is the MFP logo on the rear quarter panels of the car, and the faint MFP outline painted on the boot. Internally you can also see that it has the standard MFP radio.
The Nightrider manages to avoid his MFP pursuers pretty well, until he comes across Max, and then it's all over for him. In the scene where the car crashes out, the engine has actually been removed from the car, and it is being propelled by a solid fuel rocket - there's no sped up film here, the car is really going that fast, and with good reason! If you look at the film you can see the exhaust plume from the rocket, and you can also see that there are no passengers in the car.
