The tariffs are expected to shrink the supply of less expensive vehicles. Nearly 80 percent of cars priced at less than $30,000 will be subject to 25 percent tariffs, including popular vehicles like the Honda Civic, Toyota Corolla and Chevrolet Trax, according to Cox Automotive.

A 25% import tax on engines, transmissions and other key car parts has come into force in the US, raising pressure on an industry finding its way through a thicket of policy changes. The new tariff comes days after Donald Trump eased the measure in response to business worries,