Buick Regal (2017) is 133 mm (5.24 inch) longer and 43 mm (1.69 inch) wider than Opel Astra Sports Tourer (2020).
Opel Astra Sports Tourer (2020) is 62 mm (2.44 inch) higher, 200 kg (441 lbs) lighter and has 138 liters (4.87 ft3) bigger cargo space than Buick Regal (2017).
