Buick Regal Sportback (2018) is 905 mm (35.63 inch) longer, 167 mm (6.57 inch) wider and has 42 liters (1.48 ft3) bigger cargo space than Subaru Trezia (2015).
Subaru Trezia (2015) is 140 mm (5.51 inch) higher and 697 kg (1,537 lbs) lighter than Buick Regal Sportback (2018).
