The Audi A6 C5 2.7 Turbo Quattro was produced from 1998 to 2004.
It had a 2.7-liter V6 engine with a turbocharger that produced 250 horsepower at 5500 rpm and 300 Nm of torque at 3200 rpm.
The engine featured a dual mass flywheel and a 6-speed Tiptronic automatic transmission.
The Quattro all-wheel drive system featured a Haldex clutch and a transverse-mounted differential.
The car had a curb weight of around 1650 kg (3629 lbs).
Top speed was electronically limited to 250 km/h (155 mph) for the European market.
The 2.7 Turbo Quattro had a 0-100 km/h (0-62 mph) time of approximately 6.8 seconds.
It featured Audi's VarioCam variable valve timing system, which provided improved performance and efficiency.
The engine used a forged steel crankshaft and aluminum alloy pistons for added strength and reduced weight.
The car had a fuel tank capacity of around 72 liters (19 gallons).
The Quattro variant had a ground clearance of 130 mm (5.1 in) and a minimum turning radius of 11.8 meters (38.7 ft).
The European-market A6 C5 2.7 Turbo Quattro featured a 6-disc CD changer with an integrated radio.
It came equipped with Audi's Advanced Traction system, which provided improved stability and control.
The car had a 1-year or 100,000 km (62,137 mi) warranty on the engine and transmission.
In some European countries, the A6 C5 2.7 Turbo Quattro was available with a sunroof as an option.
It featured Audi's SRS airbag system, which included two front airbags and side airbags for improved occupant protection.
The car had anti-lock braking (ABS) with electronic brakeforce distribution (EBD).
The 2.7 Turbo Quattro was available in several exterior colors, including Reflex Silver Metallic and Alpine White.
It featured a unique "turbo" badge on the rear of the vehicle to distinguish it from other A6 models.
In 2000, Audi made some minor updates to the car's interior trim and console design.
The European-market A6 C5 2.7 Turbo Quattro had an emissions rating of Euro 3.
It featured a fuel tank capacity of around 72 liters (19 gallons) and a range of approximately 700 km (435 mi).
The car's maximum towing weight was rated at around 1500 kg (3310 lbs).
In some countries, the A6 C5 2.7 Turbo Quattro was available with a rear spoiler as an option.
It featured Audi's Parking System Plus, which provided automatic parking aid and warning functions.
The car had a weight distribution of approximately 60:40 (front to rear).
The European-market A6 C5 2.7 Turbo Quattro came equipped with an electronic stability control system called ASC+T.
It featured Audi's Adaptive Cruise Control system, which allowed drivers to set their desired speed and follow the car ahead at a safe distance.
The car had a unique "turbo" badge on the rear of the vehicle to distinguish it from other A6 models.
In 2002, Audi made some minor updates to the car's engine management system for improved performance and efficiency.
The European-market A6 C5 2.7 Turbo Quattro had an oil change interval of every 20,000 km (12,427 mi).
It featured a hydraulic power steering pump with a variable assist system.
The car's minimum recommended tire pressure was around 35 psi (240 kPa) for the front wheels and 38 psi (260 kPa) for the rear.
In some countries, the A6 C5 2.7 Turbo Quattro was available with a sport exhaust system as an option.
The European-market A6 C5 2.7 Turbo Quattro had an estimated fuel consumption of around 11.8 liters/100 km (19.9 mpg) in urban driving and 7.1 liters/100 km (32.4 mpg) on the highway.