There was no script preceding the shooting, because any trip of that kind is unpredictable : the long road (4000 km), the heat (45° C), the time (2 weeks), four people living all together in a car, the country itself (Silke and I only knew Istanbul), people from the country.
Nonetheless, it was important that a certain mood would be defined before our arrival. Writing some music appeared to be the most natural way to imagine what could happen during the journey, without making it irreversible. I wrote four songs the weeks preceding the trip. They can be interpreted in many ways. The name of the album is the title I had for the movie at that time : Overdrive.
To my eyes, they are analogue to the picture and of course do not appear in the movie.