Alfa Romeo 4C (2016) is 5 mm (0.20 inch) wider and 564 kg (1,243 lbs) lighter than Buick Regal TourX (2019).
Buick Regal TourX (2019) is 998 mm (39.29 inch) longer, 299 mm (11.77 inch) higher and has 490 liters (17.30 ft3) bigger cargo space than Alfa Romeo 4C (2016).