Those rims originally appeared on the 2004 SVT Focus and then got repurposed for the 2009+ SES. They may have changed the center cap, but I assume its the same overall design.
I usually don't watch NASCAR, the Fiesta would be the draw for me.
Not 100% correct, but close. The multi-spoke wheels first appeared on the SVT EAP edition in 2003. The wheels continued to the 2004 SVT EAP, while the regular SVT went from a 5-spoke wheel patterned after the 00 Cobra R to a 6 spoke wheel. Ford Racing offered the wheel in EAP argent, white, black, and gold. The wheels later showed up on the SES model, but the color is different. The EAP wheel is patterned after the ST170 production wheel, which was the SVT Focus if you lived on the side of the pond that was blessed with the RS.
I am not totally sold on having a Fiesta for a pacecar for a NASCAR event. As proven by the comments on the Ford Racing Facebook page, the average NASCAR fan has a strong dislike for anything that doesn't have 8 cylinders. I find that odd since none of the NASCAR cars have 8 cylinders in production form, but that is another discussion for another time. I think that the event is good exposure for the Fiesta, but just in front of the wrong crowd. I feel that Ford Racing should put more effort into a production based Fiesta rally car for Rally America, something closer to the R2 Fiesta. I know there is far less exposure in the US concerning Rally, but part of the draw of the sport is its underground following. The other thing that bothers me about the Fiesta Pacecar is that it looks fairly boring. Its looks to be a sedan with left over Focus wheels. My Fiesta looks way more exotic than the Pacecar, and that is not right. If you are going to use the Fiesta, then dress it up with some sort of body modifications, add a FSWerks turbo kit, loud exhaust, racing seats, roll cage, and giant brakes. A giant sticker and wheels just doesn't do it for me.