BMW 3 Series Touring (2015) is 5 mm (0.20 inch) wider, 9 mm (0.35 inch) higher and has 114 liters (4.03 ft3) bigger cargo space than Cadillac ATS (2015).
Cadillac ATS (2015) is 10 mm (0.39 inch) longer and 40 kg (88 lbs) lighter than BMW 3 Series Touring (2015).