Carlos Sainz believes his days as a race-winning driver will not be over when he leaves Ferrari for Williams next season. The 30-year-old Spaniard, who has won three times with Ferrari, told reporters on Thursday ahead of this weekend's Mexico Grand Prix that he is hungry for more and believes he can chase victories in future. "Nothing would make me happier than achieving something like that before the end of the year," he said, referring to the prospect of another win for Ferrari before he is replaced by seven-time world champion Lewis Hamilton.