Years of auto industry change — with parts manufacturing and vehicle assembly scattered around the world — leave it nearly impossible to think of cars simply as “American made” or “foreign made.”

Still, some cars are more “American made” than others, and at the top of the list is the Jeep Cherokee, assembled in Belvidere, Ill.

The Cherokee FCAU, +1.00% leads the Cars.com 2018 American-Made Index. It edges out Honda’s 7267, -4.21% Odyssey minivan and Ridgeline pickup truck, both built in Alabama with high domestic-parts content and U.S.-sourced drivetrains. Ford’s F, -0.67% Chicago-made Taurus ranks fourth. Four of the top 10 most-American vehicles are actually produced by a foreign-based automaker.

Cars.com graphic by Paul Dolan

Manufacturing diversity within the auto sector, and its typically high-paying jobs, are among the touchier issues as free-traders challenge a series of tariffs lobbed between the U.S. and China and the U.S. and the European Union, and as the Nafta trade pact renegotiations between the U.S., Canada and Mexico intensify.

President Trump in a Friday tweet went after the European car market in particular, sending the stocks of German automakers BMW BMW, -0.52% , Volkswagen US:VLKAY and Daimler DMLRY, +1.09% lower.

Read: Trump Today: President threatens tariffs on European cars

And:Trump administration mulls tariffs of up to 25% on auto imports

As for the American-Made Index’s makeup, U.S. assembly is a critical component of eligibility, although it’s not the whole story. Cars.com considers five factors to determine the domestic economic impact of a given model: assembly location, domestic-parts content as determined by the American Automobile Labeling Act, engine sourcing, transmission sourcing and factory jobs provided by each automaker’s U.S. plants. Notably, the labeling act doesn’t distinguish between Canadian and U.S. parts, so Cars.com does its own additional research, analyzing engine and transmission sourcing to ensure that two of the most cost-intensive components in any car are from the U.S. as it compiles the list.

Last year’s No. 1 American-made car, the Jeep Wrangler, was redesigned for the 2018 model year with enough decreased domestic content to knock it out of the index’s top 10 entirely this year. The Cherokee, however, maintained its high domestic-parts content — 72% for the 2018 model year — with engines and transmissions from the U.S.