"After a couple of years of failure, success eventually came as Ford went on to win the race four years in a row between 1966 and 1969."
Looks like one of those dumb 'Fast and Furious' epics crossed with 'Driven'.
'Ford' only won at LM twice, 1966-1967, and only with Shelby alongside Holman&Moody.
John Wyer Racing took the victories in 1968-1969, totally independent of Detroit.