Mercedes-AMG has unveiled its new S 65 Cabriolet ahead of its official debut at the upcoming Detroit Motor Show 2016. This model comes with the same upgraded twin-turbo 6.0-litre V12 engine that was recently introduced in the Mercedes-AMG S 65 Coupe.

This new model is now assembled at Mercedes-Benz factory in Mannheim, Germany, rather than on site at Mercedes-AMG’s Affalterbach headquarters. Its 6.0-litre engine churns out a massive 621bhp and delivers 737lb/ft of torque.  It comes with a seven-speed automatic gearbox and gets three driving modes with it. It is shod with 20-inch wheels and 285/35 tyres.

Despite carrying an extra 175kg brought on by the added bracing incorporated within its platform, Mercedes-AMG claims the 2180kg S65 Cabriolet boasts the same 0-100kph time as the 2035kg S65 Coupé at 4.1sec.

This is 0.2sec slower than the 2110kg four-wheel drive-Mercedes-AMG S63 Cabriolet 4Matic, whose twin-turbocharged 6.2-litre V8 produces 577bhp and 663lb ft.

Top speed for the new AMG model is nominally limited to 250kph, although buyers can choose to raise it to 300kph with an optional Driver’s Package that includes uprated tyres.

The range topping S65 Cabriolet is visually differentiated from other S-Class Cabriolet models through its more liberal use of chrome within the air ducts incorporated in the front bumper, unique wheel design, V12 bi-turbo badges along the flanks as well as a high gloss black diffuser, quad-trapezoidal shaped tailpipes and S63 identification at the rear.

The multi-layer fabric roof is available in black, dark blue, beige and dark red. It can be opened and closed on the move at speeds of up to 31mph, with the whole process taking a claimed 17 seconds.

Inside, the luxurious new four-seater receives Mercedes-Benz’s Aircap wind protection deflector, Airscarf heating element in the backrests of the front seats and heated armrests among a raft of upmarket features, all of which are carried over from the S65 Coupé.

Greg Kable (Autocar UK)