Audi is to unveil plug-in hybrid variants of its A6, A7 Sportback, A8 and Q5 ranges at next week’s Geneva motor show.

The manufacturer says they will complement its range of fully electric e-tron models, with the majority available in a choice of two configurations with either a comfort or performance orientation and corresponding outputs and equipment packages.

The plug-in models will be available for order during the course of this year and will be badged ‘TFSI e’,

They will combine a turbocharged petrol engine with an electric motor and offer an electric-only range of more than 25 miles.

The manufacturer says the hybrid drive concept is designed so customers can travel for around a third of their usual route in electric-only mode during day-to-day driving.

A8 L 60 TFSI e Quattro combines a 3.0 TFSI engine with an electric motor. In unison, the two power sources provide 449PS and 700Nm of torque.

A6 and A7 Sportback models use a 2.0 TFSI engine to deliver 299PS (450Nm) in 50 TFSI e trim, and 367PS (500Nm) in the 55 TFSI e.

Q5 PHEV will be available as a 50 TFSI e with 299PS and as a 55 TFSI e Quattro with 367PS.