He is a member of the McLaren Formula One team's Young Driver Programme, and drives for McLaren in the 2014 Formula One World Championship
Magnussen had his first experience of the McLaren MP4-27 Formula One car on track at the Abu Dhabi Young Driver test on 6 November 2012.
He set a quickest time of 1:42.651. Previously he had done work in the team's driving simulator. Magnussen's time was the best of the three-day test impressing McLaren's sporting director Sam Michael. The distance he covered in the course of the test was sufficient to earn his FIA Super LicenceOn 14 November 2013 it was confirmed that Magnussen would drive for McLaren for the 2014 season, replacing Sergio Pérez.
In line with a new rule introduced in Formula One for the 2014 season (where drivers pick a car number that they will use during their career), Magnussen will race with number 20 as this was the number he had on his DAMScar in 2013 when he won the championship.