Complete technical specifications for the Mercedes-Benz C-Class C 400 4MATIC Cabriolet — 333 hp, petrol, convertible, 2018. Performance highlights: 0–100 km/h in 5.2 s, top speed 250 km/h (155 mph), consumption 8.4 l/100km (33.6 mpg UK · 28.0 mpg US).