McLaren GT (2020) is 314 mm (12.36 inch) longer, 320 mm (12.60 inch) wider and has 50 liters (1.77 ft3) bigger cargo space than Vauxhall Astra (Hatchback) (2017).
Vauxhall Astra (Hatchback) (2017) is 271 mm (10.67 inch) higher and 402 kg (886 lbs) lighter than McLaren GT (2020).