Probably something from BBS. FI-R line rims look bad ass with a BBK.
CF wheels performance wise are amazing but looks? Eh I will pass. Few look decent and many would looked better with color. Also having rims worth more than my car? Kind of the reason I think 15 inch rear wheels with slicks look stupid on a bmw. Looking all 'race/drag cah' and you are driving on the streets where there is no need for slicks or CF rims etc. Same with a massive wing.
On a dedicated go fast car? Sure. But if money is no option the CF rims would be on a super car.
edit: If you are going CF rims, get centerlock at least!
Alloy wheels are basically for looks only, CF wheels offer so much more than just weight saving.
They don't flex like alloy on corners and keep camber and toe in check which will give you a superior handling advantage.
Huge rotational mass weight saving that will give better throttle response and more power at the wheels.
Reduced stopping distance
Reduced road noise
No heat transfer.
I can understand why they don't appeal to most but there will be others and these are the future.
I've owned OZ 3 piece, BBS 2 piece and 3 piece, HRE 3 piece, et cetera .... it's basically a trail of tears. I have so many negative stories that simply I'll never buy the high-end multi-piece wheels again. The CF wheels look interesting - I'd love to know how practical they are in dealing with the reality of road surface irregularities and damage.
People often love to tout the perfect world benefits of wheels, but practical experience trumps.