Acura RDX (2018) is 265 mm (10.43 inch) longer, 76 mm (2.99 inch) wider, 89 mm (3.50 inch) higher and has 334 liters (11.80 ft3) bigger cargo space than Mercedes B-Class (2020).
Mercedes B-Class (2020) is 70 kg (154 lbs) lighter than Acura RDX (2018).