My ideal vehicle for both everyday and chase use is the Subaru Outback.
Here is my reasoning:
PROS:
22 mpg city -30 mpg highway on regular unleaded
Bulletproof reliability (I have several friends who have Subies with 200k or better on the original motor and tranny, having only done routine maintenance on them!)
Roomier than most small SUV's and as roomy as some mid-size SUV's
All wheel drive - did I mention all wheel drive?
8.3 inches of ground clearance (comparable to that of an Explorer or Durango)
Enough room in the cargo hold with the rear seats folded to ferry around all my photography equipment when working and blow up a twin size air mattress to create cheapskate motel accomodations when chasing
CONS:
Seats not terribly comfortable on long trips
Slightly anonymous styling (particularly on the 1996-99 models; the 2000-04 models are fairly classy and the 2005-present models are quite stylish - but to be honest in regards to styling I don't really care as long as it doesn't look like a Pontiac Azz-tek)
4 cylinder boxer engine in 1996-04 models barely adequate for passing/merging maneuvers (installing a K&N air filter fixes this problem)
To me, the Subaru Outback is the perfect vehicle for both my everyday and chase use. It has almost as much cargo capacity as a midsize SUV or a minivan with the fuel economy of a midsize sedan. And did I mention all wheel drive? Granted, it doesn't have a low range, so it would be useless in deep muck situations, but it gets you through typical mud, snow and ice situations with greater ease and security than a FWD car. Also, the AWD gives you better handling on dry roads than either FWD or RWD. And Subies are renowned for their reliability; with proper care and routine maintenance, they can last 250k to 400k miles!
Having finally resolved the dealer related fiasco with my old Mercedes 300TE 4MATIC, I am currently looking for an Outback and hope to purchase one within the next month or so.