Munich Trip Checklist - Sticky Please
Warning triangle
First aid kit
STRING VEST
'GB' displayed on the rear of the car, whether that be on a sticker or on your number plates.
European breakdown cover is also worth considering if not on warranty - i.e. ADAC
Breathalyser? (I think now legal requirement in France)
Bulbs
Crash helmet
BMW Driving Gloves
Sat Nav
Torque / socket
Jack
TELL YOUR INSURANCE COMPANY ! - CCI requirement.
Other things to consider taking are some consumables for the car:
Oil
brake fluid
brake pads
basic tool kit
Spare wheel / Cups
Passport
Travel Insurance
Money
Toothbrush
What else ?? I'll update this post...