any info. on these wheels?

[M3dina]

first off, i'm new to the bimmer world. i've modded every other car that i had and this one will be no different. but i don't know much about the aftermarket scene for german cars. i'll obviously be getting a new set of rims somewhere down the road but need to find myself a set that i want. my G35 coupe had 20" Volks with stretched tires so i don't mind the stretched look and i would also like a stepped lip. can anybody estimate the specs on these wheels (size, width, offset, etc) they look like they might be 17's:

Originally Posted by bmw325e30

if you could provide me with some links to reputable shops that'd be great

thanks,
chris