As the week at the ring is going to be hard on the cars in general as well as the track time, below are a few suggested maintenance steps before taking the cars across:
Oil & filter change
Air filter change (or clean for those with fancy foam stuff)
Brake check - make sure pads have plenty meat left and that discs are in good condition
Brake fluid - for those that havent changed the brake fluid since Jesus was a boy, its worth doing. Bearing in mind the temp the brakes will reach.
Tyres - remember that the minimum German tyre depth is 3mm, & bear in mind the car has to get to the ring do how ever many miles on the track + associated driving whilst there and get home.
Items required whilst driving in Germany.
You will need:
Spare bulb kit
Beam benders for headlights
GB/Ecosse sticker or number plates
The above are mandatory
Full comp insurance will cover you 3rd party whilst on the continent, if you want to be fully comp whilst away you will need to contact your insurance company and have a Green card issued (think it cost me around £50 for a week last time).
You will need to keep your insurance certificate/Green card(if applicable)/V5 logbook & MOT in the car at all times, this includes whilst on the ring as auld Henrick got rather upset with Turbodave last time when he left them at the hotel.
AA/RAC works out at around £70 for a week (depending on the age of the car). Thats if you already have cover with them. Bear in mind if the car breaksdown in the Swiss alps, Punjat Sing in RAC control will work out the cost of your car & the cost of recovery, if the cost of recovery outweighs the cost of the car then youll be packed off home on the local Easyjet and given a cheque to replace your car when you get back.
The other option is to join the German ADAC which apparently is not that expensive and who generally bring your car back to the UK.