The C6 generation Audi A6 was produced from 2004 to 2010.
The 2.4L inline-5 engine in some markets was a more common choice for the A6 compared to the V6 in other countries.
The 2.4L V6 engine produced 150 kW (204 hp) and had a displacement of 2439 cc.
In the United States, the C6 Audi A6 was initially available with a 2.7L V6 engine producing 184 hp (137 kW).
The European market saw a 3.2L V6 option for the A6, which produced 255 PS (189 kW).
The Audi A6's all-wheel-drive system could be controlled by the driver through its Quattro system.
In addition to front and rear, some models had four wheel-disc brakes with ventilated discs at the front and rear wheels in many configurations.
It featured an electronically operated adaptive suspension for improved handling characteristics.
Available safety features on the C6 Audi A6 included a driver airbag, passenger airbag, electronic stability program, and emergency brake assist.
The interior of the car could be customized with options such as leather upholstery and walnut wood trim.
Audi's Advanced Xenon Headlight system was available for improved nighttime visibility.
It featured an Audi parking system for easier navigation in tight spaces.
Available infotainment systems included a 6-CD changer, radio data system (RDS), and steering wheel mounted controls for the audio system.
In some configurations, it had seating for up to five passengers due to a third rear seat being optional.
The C6 Audi A6's trunk capacity was approximately 520 liters without folding seats.
It featured cruise control with automatic speed limitation and adjustable sensitivity in some markets.
Some trims offered an electrically operated moonroof that opened above the rear passengers.
Audi Drive Select system, which controlled steering effort, engine power output, and transmission response was available on some trim levels.
A 6-speed Tiptronic automatic transmission for improved performance was available in certain markets.
In the United States market, a base model without leather upholstery did not include a CD player initially.
Audi's Drive Select system offered different driver-selectable modes to tailor the vehicle's response and characteristics.
The C6 Audi A6 had an electronically operated sunroof that opened above the front passengers in some configurations.
Some models featured LED tail lights for improved visibility at night or in low light conditions.
It featured a range of engine management systems including V8F, EDC (Electronic Diesel Control), and DSG 5-speed dual-clutch transmission available in certain trim levels.
In the European market, there were 3.0L V6 and 2.4L inline-5 engines options for certain trims.