I'm a HUGE fan of the meteor gray. What's your interior color? I think that if you're going with black wheels, I would want to have a tan interior or possibly another hot type color, but a black interior and wheels - not sure about that, I would have to see one guess.

 

Check out this thread with nice photos...

http://www.planet-9.com/cayman-pictures-video/13338-some-new-pics-wheels.html

and here is one of the best:

 

WOW!!! Those wheels look great! (Any idea what kind they are?)

Must...resist...urge...to...buy...

 

I would have said "No" to black wheels on a meteor gray car but the above picture looks pretty good.

That said, my personal favorite is the 18" Silver "S" wheels. As far as I can tell the silver is slightly brighter than the silver of the 17" wheels. (Just spent yesterday changing out the 17" wheels for 18" wheels.) The bright silver is a good contrast to the meteor gray.

 

Go the wheels as if you really don't like them someone on here will always buy them from you.

 

Not my car...but if you visit the thread I listed above, you will see the posters name and you can send them a PM to ask about the wheels specifications.

There is also another thread you should consider.. Here it is:
http://www.planet-9.com/cayman-tires-wheels/18759-19-volk-te37-s-installed.html

here is a good photo (yes I know its not meteor gray but!):

This owner put gray wheels on a gray car, and went with clear side markers and tinted windows...and OMG this car is SOOOO HOT. By description it sounds boring...but in photos it looks incredible. If I had a gray car.....I would DEFINITELY go with his gray on gray set up.

Owner is 00spyder and wheels are 19" VOLK TE37's.

 

I have the full leather option of sand beige and I like it!

 

My favorite after market wheels on any cayman belong to CC forum member drvreg and this is his car with Forgelines brand wheels:

 

Personally, I really like the black on grey. Did see a similar color 911 in a parking lot recently with color match wheels and polished lip, looked awesome.

 

Not meteor grey, but seal grey with Carrera Sport Wheels, which are also grey.

 

not a huge fan of color matched wheels, but I really like how the volks look on there!