Multiple white 1968 Camaro Convertibles were used to chauffeur the race drivers around the track for driver introductions prior to the United States Road Racing Championship (USRRC) event held at Le Circuit Mont-Tremblant near St. Jovite, Quebec, Canada on Sunday, June 2, 1968.
This first picture looks like it came from a period newspaper or magazine with the caption below. Although the event is not named in the caption I have been able to figure out that it was the USRRC event because out of the four major motor racing events held at Le Circuit Mont-Tremblant during the 1968 season the two drivers mentioned in the caption only participated in the USRRC event.
The race would be won by Mark Donohue in his Chevy powered Penske McLaren M6A.
1st photo was posted by "1967 RS SS" at camaropacecars.com
2nd photo came from racingsportscars.com