Buick Regal TourX (2018) is 1311 mm (51.61 inch) longer, 264 mm (10.39 inch) wider and has 277 liters (9.78 ft3) bigger cargo space than Chevrolet Spark (2020).
Chevrolet Spark (2020) is 66 mm (2.60 inch) higher and 653 kg (1,440 lbs) lighter than Buick Regal TourX (2018).