Kubica extends contract with Formula One team Renault . Kubica signs a deal that takes him to end of 2012 season . Polish driver is in this year with Renault . Valencia is currently first in drivers ' championship standings .
Robert Kubica extends contract with Formula One team Renault . Kubica signs a deal that takes him to end of 2012 season . Polish driver is in his first full season with Renault . Kubica is currently sixth in drivers ' championship standings .