Audi factory numbers indicate that the B7 RS 4 saloon can accelerate from in 4.8 seconds, and arrive at in 16.6 seconds. Most European magazines recorded results in line with the November 2009 comparison of "ultimate sedans" in "Road & Track", which recorded a 0 to 60 mph time of 4.5 seconds. This is consistent with the pattern of conservatism that is usually found in Audi's official performance numbers. For the Avant, is reached in 4.9 seconds. Top speed for all variants is "officially" electronically limited to , though some owners have reported that the speed limiter is rather "liberal" (which conforms to the pattern of previous Audi "RS" cars), observing top speeds of .