I like this film, but it's not for everyone. It sure beats a soap opera like Grand Prix, though.
I far prefer Grand Prix to Le Mans.I should point out that I saw Grand Prix in a beautiful print on TCM. I saw Le Mans on Fox Movie Channel, very poor image quality. So, no doubt, that may have influenced my feelings, somewhat or a lot.
My only major criticism was the same one I have for most docs since Kapardia broke the mold with "Senna" and then "Amy": get rid of the talking heads and just have their audio over compelling footage. Perhaps in this case there wasn't enough McQueen / Le Mans footage to do this, but even well-known clips from the film tied to the narrative would have been preferable to seeing a head in front of a blank background... A talking head is no better than just giving me something to read myself.