Simple Fan
First or Last
Without having to have an engine department, Dodge or maybe the other Japanese manufacturer Nissan might become involved. Having five brands racing would be good for the sport.
What's the point though? If I was a manufactuerer I wouldn't want my emblem on this spec engine. I want my stuff under the hood. I'd see no incentive in getting into the sport that was trying to push manufacturers involvement out. Personally I'd rather see factory teams than I would spec engines.
I agree having 5 brands racing would be great but if NASCAR has spec engines you only have 1 brand.