croix is organised every year by the ASAN club in france Associatio Alpine Nord) it's their annual circuit meeting, normaly costs €100 per car for non members of their club and you get 6 x 20 min sessions on the track...... much better value than the trackdays in the uk
it's a good day if the weather holds, its normally the second weekend of september but this year it's the second weekend of october...... so a bit of a chance on the weather,
also if you are a club member you can have a discount on Eurotunnel travel to the event..... you'll save your membership fee straight away