Mine has arrived - I just need to pluck up the courage to watch it.
The other one that might be considered for the list is "Diaries of a Gentleman". I think this chap was touring France in his Bentley in the 1920s and came across Le Mans at about the time of the race, so they persuaded him to have a go, and I think he came fourth. He stopped to dress for dinner, of course.
Several of the old favourites have not been released on DVD, like Coburn's Fast Drive, plus there are a couple about Jaguar in the late 80s, and two videos of the 1988 race (three actually but two are almost identical) [/anorak off - emergency status]
There seems to be a big gap from 1969 to 1980