The promise was made as the first Range Rover Evoque rolled of the production line at Halewood this week, marking a £1.5 billion programme to upgrade both Jaguar and Land Rover cars.
Jaguar Land Rover says 40 changes will be made to the two British-based companies, including new cars such as the Evoque, new engines and other technology.
Exact details of new models have not been revealed, but an estate version of the Jaguar XF is a possibility and production of the C-X75 hybrid supercar is expected to begin within the next five years.
Both brands are also testing electric technology, with Land Rover revealing the electric Range Rover Sport concept at the Geneva Motor Show earlier this year.
The changes will be put in place over the next five years, says Jaguar Land Rover, whose Range Rover Evoque will go on sale in September in the UK.
Models built at the Halewood plant will also be exported to 170 countries and create up to £2 billion for the UK economy because of the number of UK suppliers delivering parts for the new luxury SUV.
Jaguar Land Rover’s CEO, Ralf Speth said: “It is a groundbreaking product, a Range Rover with concept car looks, lightweight technologies and the capability to deliver 50mpg fuel economy. At the same time it’s still a true Range Rover that’s agile, nimble, designed to survive in the urban jungle and capable of tackling the toughest climates and terrains thanks to Land Rover’s legendary all-wheel drive expertise.”
The promise of further investment in the UK will delight the 19,000 UK employees of the Tata-owned brands, whose jobs have been secured thanks to the new line of successful cars such as the Jaguar XJ and the Range Rover Evoque.