Audi A4 Allroad (2015) is 77 mm (3.03 inch) longer, 30 mm (1.18 inch) wider, 66 mm (2.60 inch) higher and 64 kg (141 lbs) lighter than BMW 3 Series Touring (2018).
BMW 3 Series Touring (2018) has 5 liters (0.18 ft3) bigger cargo space than Audi A4 Allroad (2015).