Buick Regal TourX (2019) is 620 mm (24.41 inch) longer and 51 mm (2.01 inch) wider than Mitsubishi Outlander Sport (2018).
Mitsubishi Outlander Sport (2018) is 163 mm (6.42 inch) higher, 272 kg (600 lbs) lighter and has 14 liters (0.49 ft3) bigger cargo space than Buick Regal TourX (2019).