Audi engineers are hard at work developing a redesigned S6 and one of the prototypes has just been spotted.
The prototype is for the wagon body style, referred to by Audi as an Avant.
Audi has already revealed the new A6 Avant (shown below), which means the sportier S6 Avant can't be far. It should debut alongside an S6 sedan late this year or early next.
Underpinning the new A6 range, including the S6 models, is the latest evolution of the Volkswagen Group's MLB platform for front- and all-wheel-drive cars with longitudinally mounted engines. The platform brings weight savings, extra space in the cabin, and compatibility with plug-in hybrid options.
2019 Audi A6 AvantEnlarge Photo
The new A6 in sedan guise reaches showrooms this year as a 2019 model. We'll get one powertrain at launch: a 3.0-liter turbocharged V-6 with mild hybrid tech. The engine will be paired to a seven-speed dual-clutch transmission and deliver 340 horsepower and 369 pound-feet of torque, likely to all four wheels as standard.
As for what's under the hood of the S6, we expect a more potent twin-turbo V-6, most likely the 450-hp 2.9-liter mill found in the latest RS 5. And instead of a dual-clutch transmission we should see a regular eight-speed automatic. The outgoing S6 had a 4.0-liter twin-turbo V-8 with 450 hp.
Further up will be an RS 6 with a twin-turbo 4.0-liter V-8 delivering over 600 hp and possibly an RS 6 e-tron with plug-in hybrid power and even more potency.
Sadly, there's no word on whether we'll see the latest A6 and S6 wagons in the U.S. Audi skipped the current A6 and S6 Avants to focus on the A7 range here, and it's possible the same will be true for the redesigned models.