Honda Ridgeline (2016) is 836 mm (32.91 inch) longer, 209 mm (8.23 inch) wider, 344 mm (13.54 inch) higher and has 660 liters (23.31 ft3) bigger cargo space than Opel Ampera (2017).
Opel Ampera (2017) is 986 kg (2,174 lbs) lighter than Honda Ridgeline (2016).