Sorry for being so late in posting, but didnt have access to net on the ship.
Ok, for those of you planning on using Norfolkline (soon to be DFDS we think) on the Dover to Dunkirque route, this is my sinopsis....
If you have a standard Zed, not lowered, and with no front lip on, you should have no issues at either side of the corssing, and if you are directed up to the car deck (deck 5) you will have no issues clearing the ramp ( I sent a Night Blue one up last week as a test, and there was loads of space.
If you have a low/long front nose, or lowered suspension you should still be ok to get onto the ship. When the guy tries to usher you up top, just ask politely if you cad stay on Deck 4. I usher lower cars onto deck 4 before they even ask, but incase the officer forgets, then just ask.
All of what I say with regards to the getting on and off the ramps is not to be taken as Gospel, and I am in no way liable if you damage your car. The angle of the ramps in both ports varies depending on the load status of the ship, and the current state of the tide, and the capability of the link span operator (who works for a diff company, so no use harassing Norfolkline staff about that).
Also in Dunkirque, there are 2 berths that are used.
Qui De Ramsgate is the normal one, and is suitable for almost any car.
Qui de Alsace is used in strong SW'ly winds, and has a "kink" in the link span. This can mean that you can get off the ferry onto the link span, but sometimes the span can have a dip in it which may cause issues for exceptionally lowered cars.
In the past 2 weeks Ive seen all manner of TVR's, Porches, Evora's, Elises etc, and none have recieved any damage.
Hope this is of help to some people.
Al