Will they fit?
http://www.minilitewheels.com/Images/gsr2-ev2000.jpg

Fitment info:
15X7, Offset 38-58mm, Backspace 139-159mm
16X7, Offset 38-58mm, Backspace 139-159mm
17X7, Offset 33-68mm, Backspace 136-168mm
17X7.5, Offset 38-71mm, Backspace 148-180mm

These won't, will they? They're splined, whatever that means.
http://www.minilitewheels.com/Images/miniliteanthracitespline.jpg
Fitment: http://www.minilitewheels.com/offset_backspace_sport.htm

Just curious. People sometimes try to compare xB to a Mini.

all those will fit scions...
how much are they a rim? those are nice choice
for panasports/watanabe alternatives

"* Due to the ever changing GBP to USD exchange rate, please call for current prices.
Tel: (860) 355-8888 ~ sales@minilitewheels.com "

I found a UK dealer showing a set of 4 wheels, 7J X 15 size, for £489 + shipping to the US (of course). Here's that link: http://www.quillertriumph.co.uk/Quiller/Parts/Wheels/minilite/minilites.htm

Actually, I think that Minilites are what all the others (that look like those) were modeled after.

So, what's "splined" mean? Is that sorta like the inner hub of the wheel being keyed?

pick up a copy of sportscar magazine, its the SCCA monthly national mag.
in the back pages there are abour 5-10 vendors that advertise carrying panasports, i'm sure they will have the size and offset you want ( i've picked up two sets from vendors there)