Specifically I'm speaking of the Rota Attack wheels in 4x100 offset. Thanks.

a 4 x 100 bolt pattern will fit.

this thread has a lot of information about wheel fitment
http://www.scionlife.com/forums/viewtopic.php?t=348

i think i saw a set on a set on a scion the other day.........so yea.....

They'll fit, but you'll want shims and spacers because they are usually made for Hondas...and their offsets are different.

or itll sit wwwwwwwwwwwwwaaaaaaaaaaaaaaaaaaaaayyyyyyyyyyyyyyyyyyyyyyyyyyyyy in