The Ferrari F2005, Ferrari's contender in the 2005 Formula One World Championship, marked a departure from the team's dominant run. The car, designed by a team including Rory Byrne, Aldo Costa, and led by Technical Director Ross Brawn, was the last Ferrari F1 car to feature a V10 engine. Despite its evolutionary design, the F2005 struggled with Bridgestone tyres that were less effective compared to Michelin tyres used by rival teams, under new rules requiring races to be completed without tyre changes. This significant disadvantage contributed to Ferrari's lowest constructors' result since 1995. The F2005's best result was a one-two finish at the United States Grand Prix, a race where only six cars competed. Additionally, aerodynamic issues and a bulky gearbox.