The Audi Q6 e-tron SUV has been spotted in Ingolstadt undergoing testing. It will be one of the first Audi models to use the new Premium Platform Electric (PPE) architecture that Audi and Porsche have developed.

Confirmed for launch in 2022 by Audi CEO Markus Duessman, the Q6 e-tron will fit between the Q4 e-tron (VW's MEB platform) and the full-size e-tron flagship (modified MLB SUV artchitecture) in Audi's lineup. It will be built in Ingolstadt where Audi is also building a new battery production facility for its growing EV lineup.

The Q6 e-tron will be a sister vehicle to the electric version of the Porsche Macan, in the same way the e-tron GT is similar to the Porsche Taycan.

The new PPE architecture is based on the J1 platform that's used on the e-tron GT and Taycan.

This Q6 e-tron prototype suggests that it will have design influence from the full-sized e-tron. The Q6 looks to be adopting a cab-backward silhouette, bulky rear arches and a sloping roof line.

The Q6 e-tron should be more performance focused compared to its ICE counterpart. The most powerful model (likely a RS) should deliver around 590 hp to both axles through the PPE platform. Though the platform has been designed with a rear-mounted electric motor as standard.

The PPE platform has 800-volt charging capability built in, which means it will be able to charge at speeds up to 350 kW. Range is expected to be around 315 miles, given the e-tron GT is quoted to be capable of 300 miles per charge.

It's unclear if the Q6 e-tron will arrive before or after the expected A4 sized electric sedan.