 Complete the following phrase:  Sonic has also been used as a symbol for Segas various sponsorships. Between 1993 and 1997, Sega sponsored the JEF United Ichihara Chiba football team, during which period Sonic appeared in the teams uniform. During the 1993 Formula One championship, Sega sponsored the Williams Grand Prix team, which won the Constructors Championship that year, as well as the teams lead driver, Alain Prost, winning the Drivers Championship. Sonic was featured in the cars, helmets, and their rivals McLaren used to paint a squashed hedgehog after winning races over Williams. The 