BMW 1 Series (2015) is 23 mm (0.91 inch) higher and 443 kg (977 lbs) lighter than Mercedes E-Class (2016).
Mercedes E-Class (2016) is 550 mm (21.65 inch) longer, 306 mm (12.05 inch) wider and has 180 liters (6.36 ft3) bigger cargo space than BMW 1 Series (2015).