BMW 5 Series Touring (2016) is 498 mm (19.61 inch) longer, 113 mm (4.45 inch) wider, 118 mm (4.65 inch) higher and has 260 liters (9.18 ft3) bigger cargo space than Opel Ampera (2020).
Opel Ampera (2020) is 358 kg (789 lbs) lighter than BMW 5 Series Touring (2016).