Awesome experience, i recommend it even for non-motorsport fans as following the race is to me secondary. Even the drive to/from Le Mans is cool as you’re in a long procession of high-end sports cars and assorted classics with local populations in the villages you pass through lining the streets for the spectacle – just watch out for radar-toting Plod. To me it’s about the crowd-based antics around the circuit be it drag-racing on the roads around the camping (until the CRS tipped up {i didn’t hang around}), or quaffing a beer beside the Mulsanne Straight with cars blasting by at silly speeds just metres away… and at night it gets better especially at the braking zones!
It’s cheap, too, but it’s been a few years since i was last there.
My Top Tips – earplugs/tripod-type camping chair/loo roll.