Probably the COT is my guess, since they (MA) are going to all COT's. I noticed the Jeff Burton car is like this...the Cingular is the old car, the AT&T is the COT and that scheme was driven in both cars I believe. That kinda makes me think, other than special stuff like the Daytona 50th cars etc., the cars from now on will be COT's. I would imagine the last regular car will be a Matt Kenseth Homestead raced win version, and a Cup Champ clean version.
I forgot about the CFS deal w/the Nano car. Maybe MA will make a Champ version though, ya never know, but w/the hard-on Roush has w/MA, and he is helping CFS, He will probably sign exclusivly w/CFS for a Champ car if one is made.
Guess we won't be seeing a raced version, and that's a shame, since Matt burned it down during the victory celebration.