Buick Regal Sportback (2020) is 3 mm (0.12 inch) longer, 3 mm (0.12 inch) wider, 20 mm (0.79 inch) higher and has 65 liters (2.30 ft3) bigger cargo space than Nissan Maxima (2018).
Nissan Maxima (2018) is 168 kg (370 lbs) lighter than Buick Regal Sportback (2020).