Rubens Barrichello leaves Williams after contract negotiations for end of year break down . British team will retain veteran Hulkenberg and name new driver by end of year . Hulkenberg had an impressive rookie season , claiming pole position in us . The drivers helped Williams to retain First place in the constructors ' standings .
Nico Hulkenberg leaves Williams after contract negotiations for 2011 break down . British team will retain veteran Rubens Barrichello and name new driver by end of year . Hulkenberg had an impressive rookie season , claiming pole position in Brazil . The drivers helped Williams to retain sixth place in the constructors ' standings .