BMW 8 Series (G14) (2020) is 160 mm (6.30 inch) longer, 91 mm (3.58 inch) wider and has 56 liters (1.98 ft3) bigger cargo space than Cadillac ATS-V (2018).
Cadillac ATS-V (2018) is 76 mm (2.99 inch) higher and 300 kg (661 lbs) lighter than BMW 8 Series (G14) (2020).