BMW 4 Series (2015) is 68 mm (2.68 inch) longer and 85 mm (3.35 inch) wider than Nissan X-Trail (2014).
Nissan X-Trail (2014) is 387 mm (15.24 inch) higher, 85 kg (187 lbs) lighter and has 120 liters (4.24 ft3) bigger cargo space than BMW 4 Series (2015).