The book is completed with a detailed section devoted the leading cars of the 2011 season : from the new Ferrari F150 to the Mercedes-Benz WO2, the McLaren MP4/26 and the heir to the 2010 world championship-winning Red Bull RB7. The 2011 world championship will also be the one in which KERS will be used again and it sees the return of Pirelli as the sport's official tyre supplier.