BMW 6 Series Gran Turismo (2019) is 427 mm (16.81 inch) longer, 60 mm (2.36 inch) wider, 147 mm (5.79 inch) higher and has 315 liters (11.12 ft3) bigger cargo space than Cadillac ATS Coupe (2018).
Cadillac ATS Coupe (2018) is 245 kg (540 lbs) lighter than BMW 6 Series Gran Turismo (2019).