 Complete the following phrase:  Hill became a test driver for the Formula One title-winning Williams team in 1992. He was promoted to the Williams race team the following year after Riccardo Patreses departure and took the first of his 22 victories at the 1993 Hungarian Grand Prix. During the mid-1990s, Hill was Michael Schumachers main rival for the Formula One Drivers Championship, which saw the two clash several times on and off the track. Their collision at the 