I worked near CDG airport for 4 years 04-08 and never had a problem but that doesn't mean it's OK now from what others have said. I never had the balls to keep up with the locals, though when I tried it was certainly an eye opener.
That said, french car drivers are far more biker aware than they are here and readily move out of the way. Just watch out for dosy brits with caravans and cycle racks.