BMW 8 Series (G14) (2020) is 191 mm (7.52 inch) longer and 96 mm (3.78 inch) wider than Cadillac ATS (2014).
Cadillac ATS (2014) is 81 mm (3.19 inch) higher, 429 kg (946 lbs) lighter and has 31 liters (1.09 ft3) bigger cargo space than BMW 8 Series (G14) (2020).