The one millionth Honda Civic car is due to roll off the company's production line in Swindon on Friday.
An extra 700 jobs were created last year at the plant
The car was first manufactured in 1972 and has been produced in the Wiltshire town since 1985.
An extra 700 jobs were created last year at the plant, taking the workforce to 4,900.
Production rose earlier this year from 190,000 cars to 250,000, as a result of "unprecedented" European demand for the Civic three and five-door models.