The Stig is the official test driver of BBC's Top Gear. He appears in a white jumpsuit and his trademark helmet (the previous Stig appeared in a black get-up). The hosts of Top Gear project the Stig as having obscure habits and often use funny one liners to introduce him before the test run. For many years Top Gear have tried to keep the Stig's identity a secret however it is believed that the Stig is actually Ben Collins, a racing car driver from Bristol. In Season 13 of Top Gear, they revealed the identity of the Stig to be Michael Schumacher when they had him over at the show, however that was a joke.
A few months back there was a Top Gear Shooting in Abu Dhabi where the Stig was said to be present.
I was there at the Autocross but did not see the Pakistani Stig there, honestly I feel bad for the poor lad who would have had to stay in that suit and helmet without any ventilation.. Haha Pakistan is not meant for the Stig.