Buick Regal TourX (2020) is 89 mm (3.50 inch) longer, 3 mm (0.12 inch) wider, 48 mm (1.89 inch) higher and has 195 liters (6.89 ft3) bigger cargo space than Nissan Maxima (2018).
Nissan Maxima (2018) is 108 kg (238 lbs) lighter than Buick Regal TourX (2020).