Do SRX 18" rims fit on a CTS-V?

[mtlws6]

I've done numerous searches and keep coming up empty. So far this is what I've found:

Wheel specs:
SRX - 18" x 8" 51mm offset
CTSV = 18" x 8.5" 42mm offset

By using the SRX rims on the CTS we would have the following:

Inner Clearance: 3mm LESS (the inside of the wheel to the strut housing)
Outer Position: RETRACT by 15mm (position of the outside edge of the wheel)

I'm thinking that at worst, we can run a 15mm spacer to move the wheel back to it's outer position. My concern now, does the SRX wheels clear the CTS-V calipers?

I'm considering these to mount a spare set of rubber on. Has anyone tried it?

[redimpss5]

Tire rack has 12 rims to choose from for the SRX, but only 1 for the CTS-v. If the are interchangeable, I would think they would have all the same rims on boths pages.