When the Mercedes S63 AMG became the Brabus 850 Cabrio, the fastest four-seat convertible in the world

Throughout its history, tuner Brabus has built the most radical versions of Mercedes-Benz models. But its latest creation goes one step further… it is the Brabus 850 Cabrio, and it is the fastest four-seat convertible in the world. This model uses the underpinnings of the renowned Mercedes-AMG S63 Cabrio and boasts a staggering 850 CV of power.

The Brabus 850 convertible is even faster than the new Bentley Continental Supersports (710 CV), an absolute beast which, unlike this version of the AMG S63, does not yet have an optimised variant from a tuner.

The Brabus 850 uses the same twin-turbo V8 engine as the Mercedes AMG S63 Cabrio, but unlike the original model, its displacement has been increased from 5.5 litres to 5.9 litres. The performance gain is overwhelming: power rises from 585 CV to 850 CV (an increase of 265 CV), while torque climbs to 1,450 Nm (compared with 900 Nm in the base model). Thanks to these upgrades, the Brabus 850 Cabrio reaches 100 km/h in just 3.5 seconds, and its top speed sits at 350 km/h; although it could exceed that speed with a different type of tyre.

This version of the Mercedes AMG S63 features a 7-speed automatic gearbox and Mercedes’s four-wheel-drive system (4MATIC). The Brabus 850 Cabrio has been lowered by 15 mm compared with the original model.

The Brabus 850 has received a more aggressive design than its Mercedes counterpart thanks to the addition of a design kit featuring carbon-fibre aerodynamic elements. The contrast of the carbon fibre with the white bodywork and red interior creates a genuinely striking aesthetic combination.