BMW 1 Series (2014) is 515 kg (1,135 lbs) lighter than BMW 5 Series Touring (2015).
BMW 5 Series Touring (2015) is 636 mm (25.04 inch) longer, 152 mm (5.98 inch) wider, 146 mm (5.75 inch) higher and has 200 liters (7.06 ft3) bigger cargo space than BMW 1 Series (2014).