I seem to think it was about 10/11 years ago.
I took my best mate and our two sons and they befriended the TWR/Nissan team
Bearing in mind they were 12/13yrs old, they assisted the team during the practices with general behind pitwall stuff and came away with loads of goodies.
ME, they would not let in.
Some times kids have a better deal, especially when a load of team members arrive for a barbie at our pitch on MB.
My son donated his teamshirt to me 3 yrs ago and I still wear it.
Jerry