Buick Regal TourX (2018) is 66 mm (2.60 inch) longer, 3 mm (0.12 inch) wider, 12 mm (0.47 inch) higher and has 138 liters (4.87 ft3) bigger cargo space than Hyundai Azera (2015).
Hyundai Azera (2015) is 47 kg (104 lbs) lighter than Buick Regal TourX (2018).