1994 late-model Ford Explorer Sport (the twin to the Mazda Navaho, last year it was manufactured).
Repair: It's had one tuneup in 8 years. One new set of tires. One new set of brakes. Needs shocks. AC works flawlessly and mechanic says if it isn't broken it doesn't need cleaning/freon/whatever. One new muffler and exhaust pipe. Oil changes every 4 months, except the last year when I just plain forgot. Has a hairline crack in the gasket that keeps the oil from leaking, but there's no oil drip so the mechanic says to leave it alone. Transmission - eh. I didn't read the manual and tried using the 4WD while driving around 60 MPH, so it has a bit of a clunk whenever I use 4WD now. But it still works fine.
Cleanliness: Hahahahahahahahahahha! You can eat off my truck. You'll find the taco remnants in the back seat to be a particular treat, though I prefer the melted Hershey bar on the floor by the hatch. I won't bother mentioning the yearly wasp nest inside the passenger side door. You don't wanna know what's in there.