2. The 2007 Cadillac Escalade ESV, a full-size luxury SUV, has the highest theft-claim frequency of any vehicle by a long shot. It's 15 times more likely to end up in the hands of thieves than the least-stolen car, the luxurious Mercedes E Class sedan, according to the theft-claim frequency report for 2005-07 model year cars, SUVs and light trucks, produced by the Highway Loss Data Institute (an affiliate of the Insurance Institute for Highway Safety) - IIHS. The E Class, Buick Rainer and Subaru Forester have the lowest theft-claim frequency reports.
3. While the Escalade is the most coveted among thieves, the Hummer H2 and the Hummer H2 SUT (a sport utility truck with a small pickup bed in the rear compartment), are also highly desirable--and among the top 10 vehicles with the highest theft claim frequencies. Given a choice between a Hummer and a small car like the Ford Focus or a wagon like the Volvo V70, a thief is eight times more likely to go for the SUV.
4. To generate lists of the most- and least-stolen cars, the IIHS annually reviews insurance-claim reports to determine theft-frequency rates based on the number of claims filed for every 1,000 vehicles insured each year. The 2008 report, released in October, only includes 2005, 2006 and 2007 model-year cars, light trucks and SUVs, with the exception of the Cadillac Escalades (only the 2007 model is included because it was redesigned for that model year) and the Dodge Charger (only the 2006 and 2007 models are included since it was not available in the 2005 model year). Based on the claims filed, the IIHS also calculates the average loss payment--the amount paid to the consumer by the insurance company--made for each claim filed. Although there are plenty of sedans and smaller models that are attractive to thieves, most of the vehicles comprising the list of the top 10 most-stolen cars are big trucks and SUVs. So be careful if you did have this kind of vehicels :D