BMW 8 Series (G14) (2018) is 68 mm (2.68 inch) wider than Cadillac CTS-V (2019).
Cadillac CTS-V (2019) is 176 mm (6.93 inch) longer, 114 mm (4.49 inch) higher, 43 kg (95 lbs) lighter and has 38 liters (1.34 ft3) bigger cargo space than BMW 8 Series (G14) (2018).