Knockout punch in a velvet glove comes courtesy of a formidable new 313bhp Audi biturbo TDI engine and 650Nm of maximum torque. The new twin-turbo V6 is notable not only for being the most powerful six-cylinder diesel engine ever offered by the Vorsprung durch Technik brand, but also the sweetest-sounding.
Slotting in above the single-turbo 204bhp and 245bhp versions of the 3.0TDI that already feature in the A6 and A7 Sportback ranges, the latest V6 has a two-stage turbocharger group that delivers a maximum boost pressure of up to 3.2bar, helping the A6 3.0 BiTDI quattro Saloon to lunge at the horizon and pass the 100kmph marker in as little as 5.1 seconds. An electronically limited top speed of 250kmph is common to all versions.
