Brabus Rocket 900 Cabrio: world’s fastest convertible

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Brabus is in the business of taking luxury vehicles and turning them into high-horsepower monsters. Instead of messing with a good thing, Brabus has continued that trend with the Mercedes-AMG S65 Cabriolet.

Initially, the 6.0-liter twin-turbocharged V-12 made 621 horsepower, plenty for anyone looking to rocket to the country club, but Brabus wanted more. In order to harness the extra power, Brabus bored out the V-12 to make it a 6.3-liter, added larger turbocharges as well as a custom exhaust system and found themselves pumping out 887 horsepower and 1.106 lb-ft of torque.

Yes, that is a four-digit torque reading on a cabriolet. On top of performance upgrades, the Brabus Rocket 900 gets a custom interior with steel accents, 21-inch wheels, a 0.6-inch lowering kit, and additional aerodynamics.

When all is said and done, the Rocket 900 hits 60 mph in 3.9 seconds (thought it would be faster) and tops out at 217 mph. Still, these numbers grant the Rocket 900 with the title of fastest four-seater cabriolet in the world.

The trickiest part

Perhaps the trickiest part of the entire car is Brabus’ patented sport exhaust system with electronically-controlled exhaust flaps that can be transformed from citizen sound levels to ridiculously loud at the touch of a button on the steering wheel.

All the parts used in constructing the new four-seat supercar can be fitted directly to a standard Mercedes, including the 400 km/h (249 mph) Brabus speedometer.