Great photos from the past. I actually watched the 1976 Daytona race won by the #59 CSL. I drove up there in my '72 2002 with the newly formed Everglades Chapter in the BMWCCA. We were inside the track wandering around. I stood in front of a CSL with the windshield banner "Peter Gregg Racing" and made sure the"Peter" section was missing.
I'm not related to that Gregg family. That old photo is buried with all of those other 4X4 pics taken back then.