2009 Formula One World Championship joined Brawn as a test driver. Force India joined Brawn GP in using the Mercedes engines by signing a five-year deal until 2013, having ended their previous supply contract from Ferrari. The retirement of Red Bull Racing driver David Coulthard led to the appointment of Sebastian Vettel as his replacement, who left the Scuderia Toro Rosso team after a successful previous season including winning the Italian Grand Prix. Toro Rosso, a team designed to develop new Formula One drivers, saw co-owner Gerhard Berger sell his half-stake back to Red Bull, claiming that the new regulations would "leave no room for
2010 Formula One World Championship the sport's future until its expiration in 2012. The new season test schedule started on 1 December 2009 with a three-day 'Young Driver Test' (for drivers with fewer than three Formula One race starts to their name) at Spain's Circuito de Jerez. British Formula 3 Champion Daniel Ricciardo was fastest for Red Bull Racing. As with 2009, the teams were allowed a maximum of over the course of fifteen days in February. Testing sessions were confirmed for Valencia (1–3 February), Jerez (10–13 February and 17–20 February), and Barcelona (25–28 February). All but Campos/Hispania and US F1 took part in the