The first items I got for my car were the Turbo Cast Rims. My car came with the stock gold Diamond Spoke rims. The rims were in great shape, but they weren't going to look right for KITT-X. So, I had to find the rare Turbo Cast rims and caps. Luckily, I was able to get my rims and caps from a local shop.
The shop refinished the rims and painted the caps. The paint job on the caps wasn't that great, but it didn't really matter that much as they were going to get repainted with the rest of the car eventually. The rims and caps were put on the car in the June 2000. That was pretty much the extent of conversion parts that went onto the car that summer.
In October of 2004 I had the rims refinished at Keystone Automotive. The shop sandblasted them so that they had the natural aluminum finish with machined edges and fins. Then the rims were powder coated and clear coated. They turned out great and were a much needed improvement. I also got new Goodyear Eagle GT tires for the car in '04.