Buick Regal (2014) is 475 mm (18.70 inch) longer and 46 mm (1.81 inch) wider than Mitsubishi Outlander Sport (2016).
Mitsubishi Outlander Sport (2016) is 148 mm (5.83 inch) higher, 175 kg (386 lbs) lighter and has 212 liters (7.49 ft3) bigger cargo space than Buick Regal (2014).