BMW 3 Series Gran Turismo (2021) is 26 mm (1.02 inch) higher and 102 kg (225 lbs) lighter than Buick Regal TourX (2020).
Buick Regal TourX (2020) is 160 mm (6.30 inch) longer, 33 mm (1.30 inch) wider and has 79 liters (2.79 ft3) bigger cargo space than BMW 3 Series Gran Turismo (2021).