All Wheel Drive refers to vehicles in which all wheels are driven. In the American parlance, it is applied only to cars with a differential in the center; compare Four Wheel Drive (4WD).
This was my 1993 Subaru Impreza LS. USDM MY1993-94 Imprezas all have the 1.8 liter H4; Like all MY93-94 LSes, it's got an automatic transmission, but also AWD and ABS. The L model is available with AWD and a 5 speed, but not with ABS. The base model is always FWD, and always a 5 speed. I sold this car to a friend and the water pump promptly failed, fun times. At least I sold it cheap (less than I paid, with more stuff than I got it with...)
As you may or may not know, I live on Cobb Mountain in Lake County, California. This is a really beautiful piece of country, and many parts of it enjoy microclimates - almost nanoclimates, really - that really mitigate the impact of weather. Unfortunately, my particular portion of the hill isn't in one of these areas and we get the worst of all worlds; hot in the summer, where people just around the corner from us are ten degrees warmer, and cold in the winter, although that's an affliction shared by pretty much the whole hill. Clear Lake is at about 1000 feet, and we're at about 2700 with only one significant mountain range between us and the coast (since we're on top of the second one.)