The Audi A7 plug-in hybrid has 25 miles of EV range

The Audi A7 adds a plug-in hybrid powertrain at the 2019 Geneva Motor Show.

In accordance with Audi's new power-based badge numbers for Europe, the car wears a "55 TFSI e" label.

Under European testing, the car can do 40 kilometers, or about 25 miles, on electrical power alone.

There's a 14.1-kilowatt-hour lithium-ion battery pack under the trunk floor.

Regenerative braking is used as much as possible, but the friction brakes are used for deceleration stronger than 0.4 G.

A heat pump helps efficiently generate warmth for the cabin without using too much battery power, Audi says.

Multiple drive modes and a predictive efficiency system will allow drivers to optimize the model's economy.

In the Auto and Efficiency drive modes, the A7 will "coast" with the engine and motor turned off when the driver lifts off the throttle.

The A7 55 TFSI e will launch later on this year.

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