McLaren 675LT Coupe (2016) is 848 mm (33.39 inch) longer and 375 mm (14.76 inch) wider than Opel Adam (2020).
Opel Adam (2020) is 296 mm (11.65 inch) higher, 272 kg (600 lbs) lighter and has 192 liters (6.78 ft3) bigger cargo space than McLaren 675LT Coupe (2016).