I turned 46 two days ago. I was educated to believe that people who cannot communicate in proper English are not worthy of attention, regardless of where the communication takes place. If wanting to maintain the standards established by 1500 years of the evolution of the English language is "get off my lawn", then hand me the shotgun.
I say again: retard.
As for the Stig, considering the show's budget, I'll lay you odds that Tanner's doing all of the Stig work right now. The track's set up to put more of a premium on car control than the UK track or the AUS track, which makes it ideal for a world-class drifter like Tanner. Plus, they don't have to pay an additional person. Someone like Paul Tracy costs significant money.
Thinking about that for a second, they might actually have had trouble getting someone to dress in the white suit. Remember that one of Ben Collins' biggest complaints was being seriously underpaid, and motorsport is like any other small, insulated community. Word gets around.