BMW 3 Series Gran Turismo (2021) is 221 mm (8.70 inch) longer, 313 mm (12.32 inch) higher and has 371 liters (13.10 ft3) bigger cargo space than McLaren 600LT (2019).
McLaren 600LT (2019) is 101 mm (3.98 inch) wider and 222 kg (489 lbs) lighter than BMW 3 Series Gran Turismo (2021).