1. Anything made by Chrysler. Specifically the Neon, PT Cruiser, and any Jeep that's called a Wrangler instead of a CJ.
2. "Sport Utility Vehicles". Obviously not including REAL 4x4's as we knew them in the late 80s, but the stuff they pass off as an SUV with 4 wheel independent suspension, FWD-based platforms, all-season touring tires, and the ground clearance of a Taurus. Examples would range from a Chevy Equinox to a late model Expedition or a BMW X5.
3. Minivans - ground clearance of a car coupled with the gas mileage of a truck. Why not get a real truck??? If I ever own a minivan, it's gonna have to be something like a 4x4 Aerostar. One thing positive I can say about them though is that the sliding door has no chance of dinging my door when the snot nosed brat in the 2nd row seat flings his door open in the parking lot. Other than the Aerostar and the Mazda MPV, I can't think of any other 4x4 with a sliding door.
4. Econo-boxes - e.g. Ford Escort, Kia, etc. Who made the rule that every small car that gets good gas mileage has to have no more than $5 invested in the interior, sound deadening, and overall build quality? The only small car out there that is actually enjoyable to drive is the Mini Cooper S.
5. Cars driven by drivers with their priorities all mixed up. A late 80's Oldsmobile with 250,000 miles that could be rated in mpg of oil instead of gas, needs shocks, brakes, paint, and a rearview mirror installation kit should under no circumstances have $2000 in wheels, tires, and the biggest audio system Walmart sells.