The A6 allroad quattro 2.7 TDI is a motor vehicle from Audi, with all wheel drive, a front positioned engine and a 5 door estate/station wagon body style. The 6 cylinder, double overhead camshaft turbocharged engine has 4 valves per cylinder and a volume of 2.7 litres. 2006 Audi A6 2006 2.4 Avant Pricing and Specs: 3.2 FSI Quattro: 3.1L, PULP, 6 SP AUTO : $8,470 – 11,880: 2006 Audi A6 2006 3.2 FSI Quattro Pricing and Specs: 3.0 TDI Quattro: 3.0L, Diesel, 6 SP AUTO : $8,250 – 11,660: 2006 Audi A6 2006 3.0 TDI Quattro Pricing and Specs a07DvmC.