Hi again Simon,
I've given it more thought, and also consulted my own holiday list. In addition to what we've already come up with I'd advise:
Footpump & guage
Torch (I bought one of those wind-up ones)
Red triangle
Fuel can
WD40
Re: Fire extinguisher - HAS IT DATE EXPIRED ? Also, if it has a pressure guage fitted then check it's still within acceptable limits.
A bit of sandpaper (for those corroded electrical connections)
A bit of string (yes, I needed it 2 years ago in another car, when I noticed that the alternator belt was sawing its way through a couple of electric wires which were touching it. I had to tie them away from it)
Insulating tape (see previous item!)
Spare engine oil & auto transmission top-ups?
Water-hose repair kit (I think it's a tape you wind round)
Emergency escape hammer (breaks window & cuts seatbelt web)
GB sticker
Headlight beam converter fitted
High-vis vests. ESSENTIAL in some countries (fine-able!). My understanding is that really you'd need one each, as anyone who gets out of the vehicle must have one. I got a load for my relatives from Poundland - yes, £1 each ! Store in the car, not the boot.
Screen/side window shades
Plug-in fridge picnic box ? (but don't run your car battery flat)
the new 'European Health Insurance Card' (which replaced the E111)
Driving licence
Plenty of music to listen to
Good maps - I've found the big yellow Michelin 'Tourist & Motoring Atlas' of France extremely good. Very detailed.
Also get a less detailed map book, for an overall perspective of your general route.
A portable radio ? Does anyone know whether there is English radio commentary of the race there ?
Funnily enough there's an article on touring tips, and another about insurance, on page 9 on June 2006 JEC Magazine.
With all that lot you'll just have room for a small overnight sports bag of clothes, etc
Camera - we want to see the pics !
I'm green with envy about your trip. I hope to make it to Le Mans sometime. 2007 ?
Must go, England match is about to start.
All the best, Julian