The newest Brabus 800 package takes the Mercedes-AMG GLS 63 S 4MATIC+ into new territory.

Key to the performance suite is the aero component, a series of gloss carbon fiber components that includes a new front spoiler, a ‘RamAir’ grille/air intake, a new rear diffuser, and a quartet of tail pipes.

Power improvements come by way of a Brabus Performance PowerXtra kit, which adds 185 horsepower to the output of the GLS 63’s 4.0L V8, bringing the rating to 789. The SUV can reach 62 MPH in 3.8 seconds.

For interiors on the GLS 63, available Brabus carbon packages I and II are available. Brabus also added fine leather in a gray and red color scheme, branded floor mats, and aluminum pedals.

The GLS 63-based Brabus 800 is priced around $377K. Brabus has also recently completed a GLE 63 S transformation; it carries a $365K price tag.