Detailed specs and features for the Used 2017 Audi A6 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. $47,600 2.0T What engine is in Audi A6 (C8) Allroad 55 TDI quattro? The Audi A6 (C8) Allroad 55 TDI quattro has a V 6, Diesel engine with 2967 cm3 / 181.1 cu-in capacity. How many horsepower (hp) does a 2019 Audi A6 (C8) Allroad 55 TDI quattro have? The 2019 Audi A6 (C8) Allroad 55 TDI quattro has 349 PS / 344 bhp / 257 kW. How much does a Audi A6 (C8 MODEL: Audi A6 3.0 BiTDI quattro SE 313PS. AUDI A6 RANGE: From 2.0 TDI SE 4dr (£30,985) to 3.0 BiTDI 313PS quattro Black Edition 4dr (£49,915). ENGINE: 2967cc, 313PS V6 diesel engine, driving four wheels through 8-speed Tiptronic gearbox. PERFORMANCE: Top speed 155mph. 0-62mph in 5.1 secs. ECONOMY: City: 35.3mpg. What engine is in Audi A6 (C6) 3.0 TDI V6 225HP Quattro tiptronic? The Audi A6 (C6) 3.0 TDI V6 225HP Quattro tiptronic has a V 6, Diesel engine with 2967 cm3 / 181.1 cu-in capacity. Features and Specs: 26 Combined MPG (22 City/32 Highway) Black 2016 Audi A6 3.0 TDI Premium Plus quattro quattro 8-Speed Automatic with Tiptronic 3.0L V6 TDI Diesel Turbocharged DOHC 24V ULEV Z9hMju.