BMW 4 Series (2015) is 238 kg (525 lbs) lighter than Mercedes E-Class (2016).
Mercedes E-Class (2016) is 181 mm (7.13 inch) longer, 201 mm (7.91 inch) wider, 15 mm (0.59 inch) higher and has 95 liters (3.35 ft3) bigger cargo space than BMW 4 Series (2015).