BMW 8 Series (G15) (2020) is 380 mm (14.96 inch) longer, 94 mm (3.70 inch) higher and has 4 liters (0.14 ft3) bigger cargo space than Dodge SRT Viper (2016).
Dodge SRT Viper (2016) is 39 mm (1.54 inch) wider and 292 kg (644 lbs) lighter than BMW 8 Series (G15) (2020).