Criminals seem to have a thing for big vehicles. The Cadillac Escalade remains the car most likely to be stolen, according to new data from the Highway Loss Data Institute. This is the fourth year in a row the Escalade has topped this list. The rankings for most stolen cars are based on auto insurance claims data from 2008 and 2009. Of the top 10 vehicles with the highest theft frequency, according to the HLDI, eight are large General Motors or Ford trucks or SUVs. The other two are versions of the Chrysler 300 sedan.