Mercedes revealed its newest variants in the 2021 AMG GLE series this week. The newest entries are the Coupe versions for the 2021 GLE 63 and GLE 63 S.

The automaker presented the updated series flagship—the GLE 63 S—at the 2019 Los Angeles Auto Show, along with its little sibling. The Coupe is the latest body style to come down the pike, and the duo fills out the 63 lineup.

The new variations feature a fastback rear that gives the cars the overall body language of a crossover—hunkered, and in this case, both weighty and nimble. The Panamericana grille, reserved for high-end models like the drop-dead beautiful GT R Roadster, graces the front end.

Like others in the series, the Coupe GLE 63 and GLE 63 S are powered by Mercedes-AMG’s M177 engine. In the case of the GLE 63 S, the 4L V8 biturbo puts out 603 horsepower, and 627 pound-feet of torque; the GLE 63 version tunes the M177 to deliver 563 HP, and 553 lb-ft of torque. The GLE 63 is limited to a top speed of 155 MPH; the 63 S tops out at 173.

As is the case for other recent models, the Coupe versions are ‘mild hybrid’; this means that a 48-volt motor is substituted for a traditional starter, contributing to the overall horsepower and torque ratings. Power is sent to the wheels via a 9-speed gearbox with preset driving modes, including Sport, Sport+, and Race for those who opt for the GLE 63 S.

Pricing is yet to be announced. But Mercedes does confirm that the model variations will be in dealerships in the third quarter of this year.