there are so many amazing cars you can buy for like 10 grand, i have no idea how people can have a budget of 10 grand, and end up with something like an accord some how.
anyway, for a sports car, an e36 m3, for 10 grand you could get an amazing example, better car than the e46 m3 IMO, (still no e30). and its very reliable.
for an suv, an fj80 landcruiser, its probably the best offroad car under 10 grand i can think of in stock form. they fucking kill it. plus they are crazy reliable.
for a truck, some early 90's toyota truck for like 3 grand, get a long travel, desert truck setup. convert the bed into a camper type thing that folds out for some extra room. and have a sweet ass expedition vehicle.
for an AWD car, even though you can find one for like 4 grand, an e30 325 ix, because it really is the best AWD car you can get for under 10 grand. just a tad slower than a wrx, but with a better powerband. and a much better balanced car. especially in the snow, more reliable too. and with 10 grand you could turn it into a beast.