When Audi unveiled the fifth-generation A6 executive sedan at Geneva, we knew it wouldn't take long for the more powerful S6 to show its face. While Audi hasn't officially revealed the more performance-focused sedan yet, our spies have spotted the new S6 flexing its muscles on a hot summer day in southern Europe. Best of all, it's completely devoid of camouflage, giving us a clear look at the new styling. As you would expect, the new S6 looks a tad more aggressive than the regular A6, but the overall design isn't a dramatic departure.

It sits lower to the ground, has a more aggressive body kit, beefier brakes, and larger wheels. There will also be new sportier-looking bumpers with bigger air intakes. The biggest giveaway that we're looking at the new S6, however, is the car's quad exhaust system, a staple of Audi Sport's S models. Other than that, you would be hard pressed to tell the new A6 and S6 apart unless you're an Audi aficionado. Inside, expect the A6's interior to carry over. Of course, the biggest change will be found under the hood. The new S6 is expected to scrap the current model's, twin-turbo 4.0-liter V8 in favor of the 450-hp 2.9-liter V6 that powers the RS 5.

Instead of a dual-clutch transmission, a regular eight-speed automatic should be offered. The 2019 Audi S6 is expected to debut later this year, possibly at the Paris Auto Show in October, before going on sale in the US in early 2019.