The Geneva Motor Show always holds plenty of fresh metal – not only from the world’s automakers, but from tuners as well. Like Brabus, for example, which has a whole raft of customized and enhanced vehicles in store for this year’s show.

Chief among them are two new versions of the Brabus 800, both based on the Mercedes-AMG S63 4Matic+: one coupe, and one sedan.

Both pack Affalterbach’s latest 4.0-liter twin-turbo V8. But instead of 603 horsepower, Brabus has massaged the engine to deliver 789 – 800 by metric standards, or 588 kW. Torque has also been increased to 1,000 Nm (or 737 lb-ft).

Channeled to all four wheels through a nine-speed automatic transmission and AMG-tuned 4Matic+ all-wheel drive, that’s said to be enough to send either version to 62 miles per hour (100 km/h) in just 3.1 seconds before topping out at an electrically limited 186 mph (300 km/h).

Of course Brabus didn’t just tinker with the engine and leave it at that. It also fitted a full aero kit, variable exhaust, dropped suspension, and bigger wheels. The tuner offers alloys for the S-Class ranging from 18 inches to 22, but both show cars are fitted with 21-inch rims: Platinum Edition monoblock alloys, to be specific.

Both show cars also demonstrate Brabus’ propensity for upgrading Mercedes interiors. The sedan’s is done up in black with blue piping and gray stitching, the coupe’s in a natural shade of tan with quilted stitching and black piping.

The pair of tuned S63s won’t be the only machines Brabus will showcase at the Palexpo this year, though. It’s also lined up an E63 sedan with the same powertrain, and a V-Class van outfitted as a business shuttle. And through its Startech brand, it’s demonstrating its capabilities on British vehicles like the Aston Martin DB11 and the new Range Rover Velar.