An assortment of fuses, nuts, bolts, washers and screws. Plus some drill bits a centre punch and a hammer.
I am very grateful to the chap in the caravan nex to mine when we were in Scotland last year. One of the window stops on the quadrant in the car broke, and I was expecting to have to try to get another from a dealer in Scotland, which was not nearby, and until then travel with the window down.
I had a few basic tools with me but this chap had drill bits, nuts and bolts and, by drilling the quadrant and fixing a nut and bolt in it, provided a stop. In addition a year later it is still effective.
So, it is not just the caravan to worry about.