Make Model Spec AUDI S6 4.2 V8 QUATTRO PLUS S6. 4.2I V8 32V, SALOON QUATTRO PLUS tyre pressures Size Front Tyre Buy Tyres 255/40R17 Y 94 3.0 BAR / 44 PSI Buy Tyres 225/50R16 V 92 2.5 BAR / 29 PSI Buy Tyres What should my pressure be?