One of his big "wins" on the deal was Japan having no tariffs on cars but Japan already had no tariffs on passenger vehicles. US cars just don't fit their market. Also, we are already seeing prices on goods rising more. Inflation measures are being held down by services.
He also claimed rice was a big "no no" to send to Japan but they had an agreement with the WTO to import 770k tonnes per year. The US was already a leading foreign supplier of rice. So now, Japanese cars have a lower tariff than US automakers are paying on parts and the "wins" are fake.