My first chase vehicle was a light brown 1990 Mercedes Benz 300TE station wagon. Yes, ladies and gentleman, I chased in a Mercedes. It was a very capable chase car, it had the 4MATIC all wheel drive, which got me out of some very sticky dirt road situations, had a very roomy interior and was very comfortable on long trips. It got somewhere around 22-24 mpg on the highway, which wasn't great but for a 3500 pound AWD midsize wagon it wasn't too bad. Unfortunately, due to being defrauded by the dealership that sold me the car, I wound up suing and they are going to buy the car back from me next month.
Due to some questionable mechanical reliability issues with the Benz, I wound up parking it and borrowing my dad's dark blue 1997 Ford F-150 4x4 extended cab pickup to chase in. If gas wasn't so freakin' expensive, I would have one for my chase vehicle. I loved that truck; it was powerful, roomy, fairly comfortable on long road trips, and the low range 4x4 transfer case saved my ass on the pig grease dirt roads of northwestern Kansas back on March 28th...
But it only got about 17 mpg on the highway and it cost about $75 to fill it up each time, though it did have a 450 mile range. And my dad sold the truck in July. I was sad to see it go, we had it for 7 years and put 75,000 miles on it. Oh yeah, and it survived being driven into a tornado, so I have to give it some extra props for that.
I just recently purchased a black 1982 Mercedes 300SD Turbodiesel for my daily driver. It has 221k two owner miles and was very well maintained. But it's not perfect, I only gave $1900 for it, and it needs about $2k worth of work to make it a fully functional. It gets 30 mpg on the highway, though and is uber roomy/comfy... but I can't use it to chase in because RWD + dirt roads are not a good combination, and I don't want it to get beat up by hail... so I decided to get an AWD wagon/small suv for my chase/bad weather vehicle.
So after much research, I've decided that I'm going to purchase either a 1997-2002 Subaru Outback or 1998-2003 Subaru Forester for a number of reasons. Subaru's are pretty much a chaser's dream (ask Verne Carlson about his Impreza
). First off, the standard AWD. No, they don't have a locking differential, but they'll get you through 85% of the adverse driving situations you'll encounter, and they have excellent ground clearance (7.5+ inches, which is amazing for a passnger car), so unless you drive into 6 inches + of mud you'll be fine. The tradeoff for lacking a locking differential is that they are great on gas (they get high 20's to low 30's on the highway). They are very safe cars, the Outback and Forester earned Top Pick ratings from the IIHS and 5 Star ratings from the government. And finally, they're pretty much bulletproof reliability wise. I know of many Subie owners who, with regular maintenance, have driven them 250-300k without major problems. Oh yeah, as an extra perk, they have a built in weatherband radio.
Save a locking differential, they have everything I could ever want in a chase vehicle. I would prefer an Outback, but if I find a decent Forester I'd be happy with that, too. I'm looking around right now, and hope to buy one by the end of January so I can get it set up in time for March chasing.