BMW 3 Series Gran Turismo (2014) is 150 mm (5.91 inch) longer, 17 mm (0.67 inch) wider, 93 mm (3.66 inch) higher and has 226 liters (7.98 ft3) bigger cargo space than Cadillac ATS-V (2018).
Cadillac ATS-V (2018) is 102 kg (225 lbs) lighter than BMW 3 Series Gran Turismo (2014).