BMW 5 Series Gran Turismo (2016) is 1257 mm (49.49 inch) longer, 66 mm (2.60 inch) higher and has 113 liters (3.99 ft3) bigger cargo space than Opel Adam (2014).
Opel Adam (2014) is 95 mm (3.74 inch) wider and 829 kg (1,828 lbs) lighter than BMW 5 Series Gran Turismo (2016).