Question

How would a nation most likely try to limit inexpensive cars from being imported?

by imposing sanctions against the country where the cars are made
by imposing tariffs on the cars at the border
by entering into a free trade agreement such as NAFTA
by withholding aid from the country where the cars are made

Answer 1

By imposing tariffs on the cars at the border.

Tariffs raise the import price, making inexpensive foreign cars less competitive and reducing the quantity imported.