It looks like thieves do a little marketing research too. I think trucks are popular for a variety of reasons. They do come in handy in committing crimes like stealing ATMs and "smash and grabs". But they could also be easy to sell in other states and/or countries. You'd be surprised at the number of stolen vehicles that find their way onto used car lots. And last but not least, I'm guessing the most popular cars and trucks are hot items on the used auto parts market.