Japan has tried to offer the U.S. thebest proposals on dealerships, deregulation ofthe parts market, and other measures within thescopeof government responsibility.
As a personal opinion, these items raise an interesting question that goes beyond thescopeof this article, and this idea is perhaps best reserved for theological debates.
Because these are tech markets, constantly evolving and complex, most assumptions about thescopeof these markets and competitive effects within them are imperfect at best.