The Breakdown The next-generation Audi S6 has lost all of its camo ahead of a presumably imminent reveal. Dual fuel caps reveal the new S6 is a plug-in hybrid. Despite having a different powertrain, the plug-in hybrid S6 is unlikely to be wildly different in terms of horsepower, given that it’ll use the same S6 badge. Motor1's Take: We’re pleasantly surprised to see Audi is about to come out with an S6 powered by a combustion engine. The fact that it’s a plug-in hybrid makes sense given how strict emissions regulations are becoming, especially in the mandate-obsessed EU.