 Complete the following phrase:  After the White Stigs debut, there was widespread speculation over his identity. Various sources claimed him to be a number of different racing drivers, including Collins, Damon Hill, Julian Bailey, Russ Swift, Darren Turner and Tim Schrick, as well as former Top Gear presenter Tiff Needell. Several people, including Hill and musician Jay Kay, claimed to be the Stig themselves. It was also speculated that the Stig was played by multiple drivers, a theory hinted at by original Stig Perry McCarthy. After observing the Stigs charity drive around the Silverstone Circuit just before the July 