There are no cars that are made entirely in the US as all cars even when made in the US are made of some foreign parts.
Even some car manufacturers outsource their car production sometimes.
The best car manufacturer ever is Lexus.
Other best car manufacturers are.
Porsche.
BMW.
Kia.
Tesla.
Mercedes Benz.
Audi.
Toyota.
Chevy.
Ford.
GMC.
At around 11.2 million units, the Toyota Motor Corporation remains above its largest rival, the Volkswagen Group, as the world's largest manufacturer of motor vehicles.
Both manufacturers sell motor vehicles under various brands.