Mercedes B-Class (2014) is 187 mm (7.36 inch) higher, 330 kg (728 lbs) lighter and has 171 liters (6.04 ft3) bigger cargo space than Nissan GT-R (2018).
Nissan GT-R (2018) is 297 mm (11.69 inch) longer and 109 mm (4.29 inch) wider than Mercedes B-Class (2014).