The most American-made cars may not be made by the most American car brands. Four out of the top 10 most American-made vehicles of 2018 are made by Japanese brand Honda, according to the annual report from Cars.com.

“It’s part of the globalization of automotive manufacturing,” Cars.com Executive Editor Joe Wiesenfelder said in a phone interview. “The brand on the vehicle isn’t the only part of the equation of what makes it American.”

The Honda Odyssey, for instance, is built in Lincoln, Ala., and is made with 75 percent domestic parts. Compare it with Buick, which is considered to be as American as the red, white and blue in its badge: the Buick Envision crossover is manufactured in China with only 2 percent domestic parts, said Wiesenfelder.

The Odyssey (ranked second) sold in its home country doesn’t share much with the larger one here, just to give some perspective on how confusing it can be to assign nationalism to a brand. The other Hondas cracking the top 10 were the Honda Ridgeline pickup (third), Honda Pilot SUV (sixth) and Acura MDX midsize SUV, all made in Alabama on a shared platform to simplify manufacturing. The Acura MDX (seventh) is also made in East Liberty, Ohio.

“The way the American-made Index has been built was to reflect U.S. economic impact,” Wiesenfelder said. “You can’t tell what the U.S. economic impact is based solely on the brand.”

The global nature of auto manufacturing means parts can be sourced from all over the world then produced domestically, with profits funneled to headquarters in another country.

The most American-made car in the first quarter of 2018 is the Jeep Cherokee, manufactured in Belvidere, Ill. But Jeep is owned by Fiat Chrysler Automobiles, an Italian company headquartered in London. Fiat rescued Chrysler from bankruptcy in 2009 and earlier this month made a commitment to invest globally in Jeep and Ram while Chrysler and Dodge will be lower-volume regional brands.

Globalization has diluted nationalism for automakers worldwide.