No. The prost f1 racing team became bankrupt and withdrew from F1 racing at the end of the year 2001. They never competed in the 2002 season. The Toyota Racing team was a totally new team sponsored by the Japanese Car manufacturer Toyota. They did not acquire Prost F1.
A Total of 13 teams are competing this 2010 season. They are: Vodafone McLaren Mercedes Mercedes GP Petronas Red Bull Racing Scuderia Ferrari Marlboro AT & T Williams Renault F1 Force India Scuderia Toro Rosso Lotus F1 Racing Campos Meta 1 US F1 Virgin Racing BMW Sauber F1