BMW 4 Series (2016) is 316 kg (697 lbs) lighter than BMW 5 Series Touring (2018).
BMW 5 Series Touring (2018) is 308 mm (12.13 inch) longer, 25 mm (0.98 inch) wider, 182 mm (7.17 inch) higher and has 125 liters (4.41 ft3) bigger cargo space than BMW 4 Series (2016).