The Mercedes EQC SUV is just the start of the German automaker's upcoming electric onslaught. Previewed by the Mercedes EQS Vision at the 2019 Frankfurt Auto Show, the Mercedes EQS will serve as the flagship luxury sedan of the electric EQ family. As we've seen in recent prototype spy shots, the EQC will also be joined by smaller EQA and EQB crossovers that will rival the Tesla Model Y.

Now, our spies have caught yet another new Mercedes EQ model undergoing testing. Nearly two years ago, a report claimed that the Mercedes EQE has been approved for production, which will be the electric equivalent of the Mercedes E-Class slotting below the EQS, and now prototype testing has begun.

At first glance, the Mercedes EQE looks nearly identical to its EQS sibling, but a closer inspection reveals it has smaller proportions. Visually, the most noticeable difference is the third brake light positioned on the trunk instead of the upper part of the rear window like on the EQS. Also, the EQE appears to have a regular trunk as opposed to a liftback seen on its larger sibling.

Elsewhere, the position of the side mirrors is different, and the headlights are positioned lower. Like the EQS, the EQE will ride on Mercedes' Modular Electric Architecture, a dedicated EV platform designed to give EQ models a flat floor structure allowing for flexible packaging.

This means that, despite being smaller than its combustion counterpart, the EQE will have more interior space than the regular E-Class. As for the powertrain, the EQE is expected to have two electric motors, with one powering the front wheels and one powering the rear wheels for a four-wheel-drive setup. In the Vision EQS, this setup produces a combined 469 horsepower and 560 lb-ft of torque, enabling the electric luxury sedan to accelerate from 0-62 mph in 4.5 seconds.

Customer deliveries for the Mercedes EQE are expected to start in 2022, so there's a good chance it will debut at the 2021 Munich Motor Show.