The diameter of a Ferrari's steering wheel varies from model to model, though modern Ferrari vehicles usually have larger wheels than older models. The steering wheel used on Ferrari GT cars produced from 1959 to 1965 had a diameter of 420 millimeters.
Modern Ferrari steering wheels are often larger than those used in older models partially due to the additional technology included in the wheel itself. These features include airbags, media controls and Ferrari's manettino dials that are used to control the car's suspension, traction control and brake settings. Manettino controls were inspired by the controls incorporated into the steering wheels of Ferrari's GT and Formula One race cars.