The Audi A8 will be ditching its tried-and-true naturally aspirated 4.2-liter V8 engine for the 2013 model year. Instead, the automaker is fitting its flagship sedan with the twin-turbocharged 4.0-liter V8 that's also being used in the S6 and S7, good for 420 horsepower and 406 pound-feet of torque – increases of 48 hp and 78 lb-ft versus the 4.2-liter model.
Audi will continue to offer the 6.3-liter W12 in the A8, as well as the 3.0-liter supercharged V6 that was also added for the 2013 model year. All of the A8's engines are mated to eight-speed automatic transmissions, and Quattro all-wheel drive is standard across the board. The A8 4.0T will start at $80,900, excluding $895 for destination.
Elsewhere in the Audi range, the large Q7 crossover is set to get an upgraded version of the 3.0-liter diesel V6 engine. This massaged mill – which is 55 pounds lighter than before – now produces 240 horsepower (an increase of 15) and 406 pound-feet of torque (same as the 2012 model), and offers improved overall efficiency. The 2013 Q7 TDI is rated at 19/28 miles per gallon (city/highway) – improvements of 2 and 3 mpg, respectively.
The upgraded 3.0-liter TDI now matches the units offered in the Q7's siblings, the Volkswagen Touareg and Porsche Cayenne.
Both the 2013 A8 and Q7 will go on sale later this year.
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