On my trip last year I took a couple of cans of tyre weld 2 Sat Nav (back up) tool roll with usual spares bulbs etc a good mobile. If you're going to France and use some motorways maybe
www.saneftolling.co.uk I was on my own and it proved very useful.
Another thing which I couldn't use in the S1 (CD player to low down)was called the CD slot mount
www.cdslotmount.com I have one in my van and it has proved very useful. Not connected to either of these companies just a satisfied customer.