If you're shopping for a new Buick or plug-in Cadillac, you might be in for a sticker surprise in the near future.

The Buick Envision crossover is one of just a few made in China vehicles sold in the US, along with the Cadillac CT6 Plug-In. The Trump administration's plan to impose a 25 percent duty on the import of motor vehicles made in that country could make a massive impact on the retail price.

The current tariff is 2.5 percent, which isn't insignificant, but it's not exactly a major impact on the price of a car. That new 25 percent tariff could see the Envision, which starts at $31,995 but is about $15,000 more when fully equipped, see a price increase close to $10,000 depending on the model.

Cadillac CT6 Plug-In buyers could see an increase approaching $20,000. While GM might be able or willing to absorb some of that increase, it's likely that most of it would then be passed on to the consumer. The non-hybrid CT6 is built in Detroit, and the powertrain is also made in the U.S., but the Plug-In sells at a lower volume that might not make domestic production worthwhile.

The Envision's siblings, the GMC Terrain and Chevrolet Equinox are made in Canada and Mexico, although it's not clear if GM would be able to shift production. The Trump administration has also talked about putting similar import tariffs on vehicles from those countries as well.

The Commerce Department said that only 58,437 passenger vehicles were imported from China to the US last year. Most of those the two GM models, along with some Volvo S60 sedans. That's in contrast to nearly 8.3 million imported.