The V10 bi-turbo engine has until now only been available in conjunction with an Avant estate body shell in the 580PS RS 6 Avant, but to coincide with the launch of the new A6 range this astonishing ten cylinder powerhouse can now be enjoyed in both body styles. The new RS 6 Saloon opens for UK order alongside its A6 counterparts this week priced at £76,160, and deliveries will begin in November 2008.
At the heart of the RS flagship is a 5.0-litre version of the exceptionally compact, naturally aspirated 5.2-litre V10 FSI petrol engine powering the S6 quattro. Two turbo chargers and extensive component refinements boost the output of this acclaimed unit to 580PS at 6,250rpm, and increase torque from 540Nm to 650Nm, available from just 1,500rpm right through to 6,250rpm.
As a result, the Audi RS 6 quattro with optimised six-speed tiptronic automatic transmission can blast to 62mph from rest in 4.5 seconds, and continue until its electronic governor cuts in at either 155mph or 175mph, depending on whether or not its owner chooses the extra cost de-restriction package. On the combined cycle, a surprisingly real world economy figure of 20.3mpg is achievable thanks to FSI injection efficiency.Published 12 August 2008