BMW 1 Series (2014) is 13 mm (0.51 inch) higher and 323 kg (712 lbs) lighter than Mercedes E-Class (2016).
Mercedes E-Class (2016) is 519 mm (20.43 inch) longer, 323 mm (12.72 inch) wider and has 180 liters (6.36 ft3) bigger cargo space than BMW 1 Series (2014).