The McLaren MCL32 (originally known as the McLaren MP4-32) is a Formula One racing car designed and constructed by McLaren to compete in the 2017 FIA Formula One World Championship. The car was driven by two-time World Drivers' Champion Fernando Alonso, who stayed with the team for a third season; and Stoffel Vandoorne, who joined the team after Jenson Button retired from full-time competition at the end of the season. Button later returned to replace Alonso for one race and as such, the MCL32 was the last Formula One car raced by the 2009 World Champion.