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
1989 Formula One World Championship but once the appeals had been considered, Prost was crowned the champion for the third time. Driver did not finish the Grand Prix, but was classified as he completed over 90% of the race distance. Championship points were awarded on a 9–6–4–3–2–1 basis for the first six places in each race. Only the best eleven results for each driver were retained. Championship points were awarded on a 9–6–4–3–2–1 basis for the first six places in each race. 1989 Formula One World Championship The 1989 FIA Formula One World Championship was the 43rd season of FIA Formula One motor racing. It