The threat will be good enough. Trump only has to make the threat, he doesn't care about the money because unlike some people, he knows the long term benefit for the country would be better than the tax.
Anyway Congress would be salivating over the money, Ford, Nabisco, etc. knows that. Because of his popularity he already has a huge influence over Congress.
Trump operates at a level way over most people’s heads. He drives then locks up narratives and OWNS the keys. It’s amazing to watch. I have never seen a candidate so far above and ahead of everyone. A true leader. It’s been so long Americans have forgotten what a true leader actually acts like.