Cadillac CTS-V Coupe (2015) is 216 mm (8.50 inch) longer and 86 mm (3.39 inch) wider than Mazda 3 (Sedan) (2017).
Mazda 3 (Sedan) (2017) is 23 mm (0.91 inch) higher, 537 kg (1,184 lbs) lighter and has 122 liters (4.31 ft3) bigger cargo space than Cadillac CTS-V Coupe (2015).