I don't collect car models but I have a small World War II German Army mainly from the makes
Tamiya and
Dragon-Kirin.
Something like this (not my photo).
Most of mine are painted with oil paints because I feel it gives the soldiers a realistic look. You can recreate dirt and facial experessions so much better with oil paints IMO.
They're currently stored away in four boxes so I don't have the time or willpower to take pictures of them. I also have a bunch of tanks, guns, lot's of smaller accessories (extra guns, fuel cans, sand bags etc.) and I used to have a Ju-87B "Stuka" in 1:35 scale! I miss it...
Here's a cool site:
http://www.missing-lynx.com/