Was a great weekend, Le Mans number 3 in a row.
Cost about £300 all in. It can be done cheap if you plan ahead. Tickets were 67 Euros. Camping was 25 Euros. Petrol split between 4 was around £80 pound. The real cost is if you drink at the track (6 Euros a pint)
Food + Drink from the local Super U is dirt cheap, fresh fish for the BBQ!! Its a great weekend and can't recommend enough - Ideally stay the Sunday night too. Slept 3 hours Saturday night, at the track the rest of the time and then left dead on 3PM Arriving home at 111PM. Knackering drive.
Also, head to Mulsanne on the Friday - Cheap(er) Beer from the Chinese and Supercars doing burnouts - great day!