I question the accuracy of the $12,300 upcharge for "forged" wheels. The "standard" wheels for the new NSX are "forged":
Acura | Press Releases Article | Acura.com
The standard wheel design package for the new NSX includes lightweight alloy wheels with "Y"-style spokes wrapped in Continental Conti-Sport Contact 5P tires (245/35ZR19 front; 305/30ZR20 rear) developed jointly with Continental.
The unique "Y-wheel" design is a result of the NSX engineering team's extensive research to find the strongest spoke structure while using the least amount of material in order to save unspring weight. Forged in high-strength aluminum, the result is a weight savings of nearly 7 pounds per set and lower total weight than any wheels of similar size and material composition within the NSX's segment.
Additional wheel/tire options, including a track-focused tire, will be available."
"Front Wheels 19x8.5J Forged Aluminum
Front Tires 245/35ZR19 93Y SOT
Rear Wheels 20x11J Forged Aluminum
Rear Tires 305/30ZR20 103Y SOT"
Frankly, a $12,300 upcharge for forged wheels would be nonsensical.