Car and Driver had a piece a few months or years back about this. They did a percentage comparison of most makes and models. The Dodge Ram and Chevy Silverado had, IIRC, less than 50% of their parts made in the USA while the Tundra took the lead out of all the trucks with around 70% (again IIRC). It is probably one of those products built for a specific market, the USA. They still seem to be pretty reliable and hold resale value pretty well.The Tundra is pretty much American. One driving down the street in Tokyo would result in panic, and people shouting "Godzilla! Godzilla!"
One of our trainers at Lexus was part of the first-gen Tundra design team. He was 100% American, I assure you, LOL. Some of the things he said....