Last year was the first time I bought a car with chasing first and foremost in mind. I needed 1.) good gas mileage and 2.) lots of room for people and gear. I first looked at the Forester and Outback. The Outback is a smaller car, yet it costs more than the Forester. The Forester has everything the Outback does (AWD, etc) and has more interior room. But, the Forester was a little too small for the price, and I soon crossed it off the list.
I briefly considered a minivan, but gas mileage and cost were not as good as I had hoped. Windshields are also very expensive to replace on those.
I turned then to the Ford Escape and the new Freestyle wagon. The Escape was less expensive than the Freestyle but the interior seemed too primitive, plasticy, and small for a car that looked so roomy from the outside. The ride and feel was truck-like. Plus, its high center of gravity affects its handling and has a greater rollover risk.
The Freestyle was comfortable to drive and ride in and has a huge amount of space, especially when you lay all of the seats flat which is a very cool feature. The ride and handling is car, not SUV, and MPG was pretty good for a vehicle that size (26 mpg highway).
I ended up going with the Freestyle SE front-wheel drive version and it has been an excellent chase car. I have been seeing more and more of these on the road lately so you might find a few good pre-owned models to test out.
I already have over 50,000 miles on this car, mostly chasing miles, since I bought it new in January 2005.
http://wvlightning.com/chase2005/car.shtml