BMW 5 Series Gran Turismo (2017) is 361 mm (14.21 inch) longer, 95 mm (3.74 inch) wider, 139 mm (5.47 inch) higher and has 119 liters (4.20 ft3) bigger cargo space than Cadillac ATS (2015).
Cadillac ATS (2015) is 410 kg (904 lbs) lighter than BMW 5 Series Gran Turismo (2017).