BMW 8 Series (G14) (2020) is 60 mm (2.36 inch) wider than Cadillac CTS-V (2014).
Cadillac CTS-V (2014) is 25 mm (0.98 inch) longer, 116 mm (4.57 inch) higher, 26 kg (57 lbs) lighter and has 38 liters (1.34 ft3) bigger cargo space than BMW 8 Series (G14) (2020).