While the jury is still out on what paced the 1967 Daytona 300 Trans-Am race at Daytona International Speedway on Friday, February 3, 1967 these pictures show that there was a 1967 Pontiac Bonneville convertible used during the pace laps prior to the 24-Hour Continental the next day as well as a darker colored 1967 Ford Galaxie 500. Several Trans Am cars participated in the 24 hour race, so I thought we should include the pace car pictures for this particular race and while I have yet to find any photographic evidence that one of these cars paced the Daytona 300 Trans-Am race, it is probable that one of them did.
The first two pictures show a white Bonneville while in the third picture you can see the back end of a darker colored car, perhaps black or dark blue. I'm suggesting that the white Bonneville carried photographers in the backseat on the first pace lap with the darker colored car in front of it. Then by the second pace lap the white Bonneville headed off the track leaving the darker colored Galaxie 500 to pace the field prior to the green flag. The famous photo of the front row (4th attached) must have been taken by someone in the backseat of the white Bonneville. See the following post for a picture of the Galaxie 500 at the head of the field on pit lane. The trim at the bottom of the rear quarter panel is different from the Bonneville and the name of the car appears above that. Bonnevilles did not have either of these items.
The were taken by John Losee and can be found here: http://www.thevrl.com/photo/albums/daytona-24-hours-1967-1?test-locale=&exposeKeys=&xg_pw=&xgsi=&id=1465153%3AAlbum%3A223088&groupId=&groupUrl=&xgi=&commentPage=&page=1
The second photo came from www.gettyimages.com
I found the fourth photo here: http://www.quincylist.com/1967-daytona-pace-lap