Acura RDX (2015) is 267 mm (10.51 inch) longer, 86 mm (3.39 inch) wider, 121 mm (4.76 inch) higher and has 253 liters (8.93 ft3) bigger cargo space than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 291 kg (642 lbs) lighter than Acura RDX (2015).