Unveiled alongside a host of new Mercedes models at the show, including the GLC Coupé, the C 63 Cabriolet will be sold with two different power outputs, echoing the C 63 Coupé launched last year.
In C 63 Cabriolet form, its twin-turbocharged 4.0-litre V8 petrol engine kicks out 469bhp and 479lb ft of torque. In a more highly tuned C 63 S Cabriolet form, it produces 503bhp and 516lb ft.
Drive is channelled through AMG’s seven-speed Speedshift automatic gearbox (with steering wheel-mounted shift paddles) to the rear wheels. The regular model uses a mechanical locking differential, while the C 63 S benefits from an electronic locking differential.
Speeds of 174mph possible
According to Mercedes-AMG, the 1910kg C 63 Cabriolet and 1925kg C 63 S Cabriolet are capable of reaching 62mph from standstill in 4.2sec and 4.1sec respectively. Both are limited to a top speed of 155mph, although this can be extended to 174mph with an optional Driver’s Package that includes revised engine management software.
Despite their differing outputs, both models are claimed to possess combined fuel economy of 31.7mpg, giving it average CO2 emissions of 208g/km.
The C 63 Cabriolet is underpinned by a retuned version of the four-link front and multi-link rear suspension already used by the C 63 Coupé. On the C 63, standard 18in wheels are shod with 255/40 front and 285/35 rear tyres, while the C 63 S gets 19in wheels with 255/35 and 285/30 rubber. Both models boast variable damping control across three modes: Comfort, Sport and Sport Plus.