That list with the Camry at #1 is, well, unusual. It factors in sales (ie, units sold) as a sort of multiplier that boosts the Camry to the top of the list on account of its high sales figures. What is its true domestic content? I thought it was somewhere in the 70% range, behind the Taurus, Malibu, Oddyssey, Sienna, Cobalt, etc.... However, take that 70% and multiply it by total sales figures, and you have a number 1 position. Hmmm.
So by that reasoning, you could have a car with 25% domestic content, that sells about six billion annually, that would make the number 1 position easily. And consequently, a car with 100% domestic content would bring up the rear of the list if its a very poor seller. That's interesting math!