BMW 4 Series (2014) is 295 kg (650 lbs) lighter than Mercedes E-Class (2014).
Mercedes E-Class (2014) is 241 mm (9.49 inch) longer, 29 mm (1.14 inch) wider, 81 mm (3.19 inch) higher and has 95 liters (3.35 ft3) bigger cargo space than BMW 4 Series (2014).