Buick Regal Sportback (2020) is 5 mm (0.20 inch) higher, 249 kg (549 lbs) lighter and has 88 liters (3.11 ft3) bigger cargo space than Volvo S90 (2021).
Volvo S90 (2021) is 190 mm (7.48 inch) longer and 33 mm (1.30 inch) wider than Buick Regal Sportback (2020).
