The Toro Rosso STR5 was a Formula One motor racing car designed and built by Scuderia Toro Rosso for the 2010 season. The car was a significant change for the team as it represented the first chassis they have designed and built on their own; prior to 2010, the car was identical to that of parent team Red Bull Racing, circumventing a ban on customer chassis by having both cars designed by a third party. The car, driven by an unchanged lineup from 2009 of Sébastien Buemi and Jaime Alguersuari, was unveiled at the first official test of 2010 on February 1, at the Circuit Ricardo Tormo in Valencia.