Only 2513 vehicles left without country
To see these, two links:
http://www.imcdb.org/search.php?resultsStyle=asList&origin=
http://www.imcdb.org/vehicles.php?origin=
I also added links to easily see the car of "minorities", e.g. find the Chinese or Finnish cars, on the stats page:
http://www.imcdb.org/stats.php?type=countries