Free Nascar
Honda in NASCAR would become pretty big news. I think it'd actually be good for competition. Given Honda's success and involvement in other motorsports, it'd make the other manufacturers have to step up.
However, Honda likes to demonstrate their company's strength.Every form of motorsport they're involved in proves this. NASCAR rules doesn't really cater to this format anymore. It caters to the teams with the best drivers, experience, and luck. Honda would have to woo teams like Trackhouse, RCR, and/or possibly Penske. Dodge did this by getting Penske on board, and having the best crewchief, Ray Evernham start a team. Petty gave Dodge name recognition and history.