[hookah66]

BMW tire pressures are different between the front and rear wheels, this is to compensate for rear traction bias. In other words, BMW x traction will put larger torque on rear wheels, unless they start to slip and then transfer the torque to the front wheels as needed. Even in my rwd e93, the rear tires pressures are recommended at 41psig, and front at 33 psig. Is nitrogen available in your neck of woods? It is getting more popular here in US, and I put it on all of my vehicles. It really softens the harsh ride of the RFT's. By the way, nitrogen was always used in racing, aviation and in the military vehicles.