Audi R8 Spyder (2020) is 132 mm (5.20 inch) wider than Cadillac ATS-V (2017).
Cadillac ATS-V (2017) is 248 mm (9.76 inch) longer, 175 mm (6.89 inch) higher, 22 kg (49 lbs) lighter and has 68 liters (2.40 ft3) bigger cargo space than Audi R8 Spyder (2020).