Mercedes B-Class (2020) is 9 mm (0.35 inch) wider, 123 mm (4.84 inch) higher, 32 kg (71 lbs) lighter and has 105 liters (3.71 ft3) bigger cargo space than Opel Ampera (2017).
Opel Ampera (2017) is 79 mm (3.11 inch) longer than Mercedes B-Class (2020).
