DETROIT -

We all know buying American-made cars is good for Michigan and good for the national economy.

But what constitutes an American-made car?

According to the National Highway Traffic Safety Administration, it may be nearly impossible to buy a car that is 100 percent made in the U.S. That's because buying from a U.S. automaker doesn't always mean that you are buying an "American Made " product. Foreign labor and parts are used in every car model.

In an article published on TheStreet.com, the United Auto Workers union says the best way to make sure you are getting the most American bang for your buck is to buy a car with the highest percentage of American labor behind it.

UAW's top 10 cars assembled in United States

1. Chrysler 200
Assembled: Sterling Heights, Mich.
Percentage made in the U.S.: 79%
Price $26,955

2. Ford F-150
Assembled: Dearborn, Mich., and Kansas City, Mo.
Percentage made in the U.S.: 75%
Price $23,500

3. Jeep Wrangler
Assembled: Toledo, Ohio
Percentage made in the U.S.: 71%
Price: $22,045  

4. Cadillac CTS

Assembled: Lansing, Mich.
Percentage made in the U.S.: 70%
Price $35,915

5. Ram 1500
Assembled: Warren, Mich.
Percentage made in the U.S.: 70%
Price $22,120  

6. Buick LaCrosse
Assembled: Kansas City, Kan.
Percentage made in the U.S.: 60%
Price: $31,070  

7. Mitsubishi Galant
Assembled: Normal, Ill.
Percentage made in the U.S.: 56% (26% in Japan)
Price: $22,695

8. Ford Mustang
Assembled: Flat Rock, Mich.
Percentage made in the U.S.: 55%
Price: $27,220  

9. Chevrolet Sonic
Assembled: Orion Township, Mich.
Percentage made in the U.S.: 47%
Price: $14,765

10. Chevrolet Volt
Assembled: Detroit, Mich.
Percentage made in the U.S.: 46%
Price: $31,465