Paris: Formula One drivers revealed their car numbers on Friday for the forthcoming season as well as the rest of their careers with former world champion Jenson Button using plastic ducks to highlight his choice.
Governing body, the FIA, gave drivers a choice of numbers between 2 and 99 with the number one reserved for the defending world champion, currently Germany's Red Bull driver Sebastian Vettel.
Vettel will opt for the number five in 2015 should he lose the world title he has held since 2010.
The decision to add permanent numbers to the vehicles was taken to boost the sport's marketing possibilities.
McLaren's former world champion Button chose 22, announcing his decision on Twitter alongside a photo of two plastic, yellow ducks, utilising bingo-hall parlance in the process.