https://www.cnet.com/roadshow/news/audi-plug-in-hybrids-geneva-a6-a7-a8-q5/

We don't have too many numbers on these cars yet, but Audi is probably saving some of this information for the show itself.

Each vehicle connects the battery and electric motor to a direct-injected, turbocharged gas engine, although Audi didn't specify the size or output just yet. On the A8, the electric motor is joined to its eight-speed automatic transmission, but the other models ignore that cog-swapper in favor of a dual-clutch transmission. The A6 and A7 PHEVs are also available in a sportier variant that offers a stiffer suspension and a higher boost from the electric motor.