Official performance figures for the Avant, whilst consuming the recommended high octane 98 RON "Super Plus" unleaded petrol indicate the 0- dash would be completed in 4.6 seconds (s), reaching in 22.8 seconds (22.6 s for the saloon). Official figures state an electronically limited top speed of , although most "RS" owners report that the speed limiter is rather liberal on all RS cars, with genuine 'limited' top speeds of being possible to achieve. Using a lower octane-rated petrol, such as the standard 95 RON "Premium" unleaded will reduce the engine power output, and have logical reduction in performance.