BMW 3 Series (2015) is 117 kg (258 lbs) lighter than Buick Regal TourX (2020).
Buick Regal TourX (2020) is 362 mm (14.25 inch) longer, 52 mm (2.05 inch) wider, 54 mm (2.13 inch) higher and has 120 liters (4.24 ft3) bigger cargo space than BMW 3 Series (2015).