Cadillac STS (2017) is 547 mm (21.54 inch) longer and 38 mm (1.50 inch) wider than Mercedes B-Class (2020).
Mercedes B-Class (2020) is 109 mm (4.29 inch) higher, 134 kg (295 lbs) lighter and has 17 liters (0.60 ft3) bigger cargo space than Cadillac STS (2017).
