Goran, yes, it is possible.
See this thread with links to the the kit:
http://forum.a8parts.co.uk/showthread.php?t=7631
I haven't done this yet as car is parked garaged most of the time, so I see value in fans blowing when I park car outside the garage.
Edit: Power rating of D2 FL solar panel is 33.6W under direct sunlight.