To date, Mercedes-AMG has built five standalone cars. That list is already set to expand to six when the sub-brand's new electric sedan debuts — but as it turns out, the Mercedes performance group won't stop there.

For the first time in its 57-year history, Mercedes-AMG is developing an SUV entirely in-house. The high performance SUV, “Born in Affalterbach,” is built on the company’s new proprietary AMG.EA electric high performance platform. Development vehicles are set to undergo initial test drives this winter.

AMG has produced a sportier version of the Mercedes-Benz EQE SUV, but on Thursday it announced a larger standalone model based on its own AMG.EA dedicated EV platform. A teaser sketch released as part of the announcement shows a fairly sleek silhouette by big SUV standards, with a steeply raked rear roof pillar and low roof line.

The electric AMG SUV will use the same AMG.EA platform as AMG's upcoming electric sedan, with prototypes undergoing initial testing this winter.

Mercedes-AMG is developing a new high-performance, all-electric, groundbreaking off-roader-SUV in-house named Born in Affalterbach.

Mercedes-AMG is building a big car using lots of electricity and likely a fair few spells. That shady teaser pic above previews AMG’s first ever SUV. An electric SUV. ‘But wait,’ you cry, ‘AMG already builds loads of SUVs like the GLA and the GLB and the GLC and the GLE and the GLS and the EQE and the G-Wagen!

The new model will go up against the massive Lotus Eletre and future electric Porsche SUVs when it arrives. It's been a minute since witnessing any automaker double down on any future electric vehicle investments,