The McLaren MP4-22 is a Formula One racing car that was constructed by the Vodafone McLaren Mercedes team to compete in the 2007 Formula One World Championship. The chassis was designed by Paddy Lowe, Neil Oatley, Pat Fry, Mike Coughlan and Simon Lacey, with Mario Illien designing the bespoke Mercedes-Benz engine. The car was revealed in testing at Circuit de Valencia in Spain on 15 January 2007,[2][3] and was driven by double World Champion Fernando Alonso and debutant Lewis Hamilton.