Mercedes B-Class (2020) is 11 mm (0.43 inch) wider than Nissan X-Trail (2015).
Nissan X-Trail (2015) is 211 mm (8.31 inch) longer, 208 mm (8.19 inch) higher, 125 kg (276 lbs) lighter and has 160 liters (5.65 ft3) bigger cargo space than Mercedes B-Class (2020).
