Next Audi RS 6 to get 650 hp, spawn sedan?

Audi\'s next-gen RS 6 will allegedly share its engine with the Lamborghini Urus.

Audi introduced the all-new 2019 A6 at the Geneva auto show, which means the hot-rodded S6 and RS 6 models are right around the corner. Rumors from Germany shed insight into the latter.

Engineers have already started preparing the next-generation RS 6. German magazine Auto Bild reports the super-wagon will receive an evolution of the twin-turbocharged, 4.0-liter V8 engine also found in the Lamborghini Urus, among other models. It will make 650 horsepower -- 45 more than the outgoing model -- in this application.

The eight-cylinder will send the RS 6 from zero to 62 mph in 3.5 seconds, and on to an electronically-limited top speed of 189 mph. It will transfer its power to the pavement through an automatic transmission and Audi's quattro all-wheel drive system.

Auto Bild adds the next-generation RS 6 will launch as a station wagon, like all of its predecessors, which means it won't turn a wheel on American shores. However, buyers in key markets like China and the United States shun wagons; Audi of America consequently doesn't have an answer to the BMW M5 and the Mercedes-AMG E63. This could change soon.

Audi hasn't completely ruled out building a sedan variant of the RS 6, according to the report. It will likely make its debut shortly after the wagon model if it receives the proverbial green light for production.

Note: Last-generation Audi RS 6 pictured.