Ferrari Roma (2020) is 381 mm (15.00 inch) longer and 206 mm (8.11 inch) wider than Mazda 6 Atenza (2014).
Mazda 6 Atenza (2014) is 241 mm (9.49 inch) higher, 296 kg (653 lbs) lighter and has 215 liters (7.59 ft3) bigger cargo space than Ferrari Roma (2020).