What part of Germany is the truck located in?

I live in Texas but haven't heard the term 'blue title' used. Would be
interested
in knowing what the seller is trying to say (or left unsaid):

It means it's a "boy" car.....

Out in California, where most of the cars are female, they use pink
slips......

Sounds like the seller is trying to be "cool" or "chic".

In Texas:
Light blue = clear title.
Green = flood damage up to 60%.
Purple = up to 85% damaged
Brown = totally destroyed.

   Hey, 'hrs'.  Here in SC, at present our titles are blue in color.  When
titles first were required in our state, they were of a certain color--I'm
not old enough to recall for sure, but I believe they were yellow.  Later
they were green for a number of years.  Finally, this last change, they
became blue.
   When we buy an old car here now that happens to be a "1-owner with the
original, green title" the car's originality has a bit more clout than had
the orig. been lost and a duplicate issued--which would be a blue-colored
one.  And if the car is old enough and is a "1-owner with the original old
yellow-colored title", then you again have a little more assurance of its
originality than had the orig. been lost or become unreadable and replaced
with a duplicate 'green' OR 'blue' one.
   Check with the old-timer dealers and research the issue, maybe thru
Google--I feel sure you'll find a color-change-progression over the years.
   HTH & good luck, sdlomi2