Audi A4 Allroad (2017) is 112 mm (4.41 inch) longer, 17 mm (0.67 inch) wider, 131 mm (5.16 inch) higher and has 60 liters (2.12 ft3) bigger cargo space than BMW 4 Series (2013).
BMW 4 Series (2013) is 70 kg (154 lbs) lighter than Audi A4 Allroad (2017).
