BMW 8 Series (G15) (2018) is 169 mm (6.65 inch) longer, 91 mm (3.58 inch) wider and has 126 liters (4.45 ft3) bigger cargo space than Cadillac ATS-V (2019).
Cadillac ATS-V (2019) is 74 mm (2.91 inch) higher and 291 kg (642 lbs) lighter than BMW 8 Series (G15) (2018).