Audi A6 Allroad (2015) is 40 mm (1.57 inch) longer, 36 mm (1.42 inch) wider, 6 mm (0.24 inch) higher and has 95 liters (3.35 ft3) bigger cargo space than Buick Regal Sportback (2019).
Buick Regal Sportback (2019) is 245 kg (540 lbs) lighter than Audi A6 Allroad (2015).
