you can always just go to scion.com, but then again, i wouldnt be getting this chance at 10 points if you already knew the answer.
so, i really like the scion xD. there's just something about it, something that i dont quite understand, but something nonetheless that appeals to me. maybe its the look. maybe its the fact that i live in Michigan, Ford country, and would like something far from the normal everyday Focus's i see.
BUT, despite the fact that there is so much modding available, and rims, and sound system, and paint jobs, and lowering, the car itself is not fun at all. I have test driven the car about 4 times now, and each time, it gets less fun. I'd much rather save up for the slightly larger, but more powerful xB, or maybe even the tC.
plus, the xB has wayyy more customizing options, since wayyy more people customize and own xB's than xD's.
but, thats just my opinion.
anyway, the base price of an xD is somewhere around $14,500. if not exactly that amount, it is pretty close.
if you want to know other alternatives, might i suggest Mazda 3 hatchback (very fun to drive, and reliable) or VW Golf/Rabbit/GTI (very fun as well, but not so reliable from what I've heard).