BMW 5 Series Gran Turismo (2017) is 1306 mm (51.42 inch) longer, 181 mm (7.13 inch) wider, 75 mm (2.95 inch) higher and has 113 liters (3.99 ft3) bigger cargo space than Opel Adam (2020).
Opel Adam (2020) is 829 kg (1,828 lbs) lighter than BMW 5 Series Gran Turismo (2017).