@weirdonwheels: I'm quite sure, I saw the truck from the second picture back then at the place when the photograph was made: That was in Karlsruhe in its fair area on Festplatz between Konzerthaus and Nancy-Halle (you can ready "N___Y HALLE" in the picture) at the same time when LinuxTag took place in Karlsruhe in Juli 2003. The exact point where the truck was standing is here in front of this row of trees: https://www.openstreetmap.org/#map=19/49.002477/8.400480

What a flashback. 😊