“The US remains the largest single national market for British-built cars, underscoring the importance of the UK-US trade deal,” the SMMT said.

The tariff cut from 27.5% to 10% only applies to the first 100,000 cars sent across the Atlantic, which is about the number of cars the UK exported to the US last year.

Any additional car imports above that number will be taxed at 27.5%, according to the agreement.

The US represented 18.1% of all UK car exports for July, while the European Union is a much bigger market for car makers, totalling 45.6% of exports.

Colleen McHugh, chief investment officer at investment firm Wealthify, said the US was “an important market for British-built cars”.

“In particular, it is a key market for premium brands like Jaguar Land Rover (JLR).”

JLR paused shipments to the US in April after the initial higher tariffs were announced, before resuming them a month later.