Buick Regal (2014) is 536 mm (21.10 inch) longer and 87 mm (3.43 inch) wider than Mitsubishi Outlander Sport (2014).
Mitsubishi Outlander Sport (2014) is 148 mm (5.83 inch) higher, 260 kg (573 lbs) lighter and has 212 liters (7.49 ft3) bigger cargo space than Buick Regal (2014).