Originally Posted by aurelien75017
I would honestly take a car. I live abroad and my parents live in Normandy. Until they create direct trains from CDG to Rouen/Le Havre/Caen (in 2009 at the earliest, in 2020 at the latest), taking a car is the fastest and most convenient way.
If price is the #1 factor then I would go for the train, as TGV advised.

thanks everyone for the info.
I didn't knew that there is a plan for a direct train. This would indeed be a good thing.
I was hopeing that there is coach service to rouen.
Car is rearly the best option. Now I only need I good car rental promotion.