Kayak.co.uk, the travel search engine, is to sponsor Channel 4's coverage of Formula One as the broadcaster revealeded its first full ad yesterday. Channel 4’s first race coverage will be from Bahrain on 2 April and 3 April. Idents will feature across the ten live races, including practice, qualifying and online activity for watching live and across All 4, the video-on-demand platform. The season kicks off on 19 March, and Channel 4 will also show the highlights of the 21 races.