Mercedes-Benz C-Class Cabriolet (2018 – 2022) vs BMW i8 Roadster (2018 – 2020): specs compared

The BMW i8 Roadster is the more powerful of the two, with up to 374 hp against 333 hp. It is quicker, reaching 100 km/h in 4.6 s against 5.2 s. It uses less fuel, from 2.1 L/100 km against 4.9 L/100 km. The Mercedes-Benz C-Class Cabriolet is the lighter car, from 1,575 kg against 1,670 kg.

Specification Mercedes-Benz C-Class Cabriolet Mercedes-Benz C-Class Cabriolet 2018 – 2022 BMW i8 Roadster BMW i8 Roadster 2018 – 2020
Overview
Origin Germany Germany
Documented years 2018 – 2022 2018 – 2020
Body style Convertible Roadster · Convertible
Variants 6 1
Fuel Petrol, Diesel Hybrid
Drive RWD · AWD AWD
Gearbox Automatic Automatic
Performance
Power 156 – 333 hp 231 hp
Torque 250 – 500 Nm 320 Nm
0–100 km/h 5.2 – 9.1 s 4.6 s
Top speed 220 – 249 km/h 249 km/h
Economy
Fuel economy 4.9 – 8.2 L/100 km 2.1 L/100 km
Dimensions
Length 4,686 mm 4,689 mm
Width 1,811 mm 1,943 mm
Height 1,410 mm 1,290 mm
Wheelbase 2,840 mm 2,799 mm
Curb weight 1,575 – 1,785 kg 1,670 kg

Ranges cover all variants of each car. The highlight marks the best version per row.

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