London, Mar 24: After months of fevered speculation and several postponements, Tata Motors of India is finally set to become the new owners of two of the world's best-known luxury car models - Jaguar and Land Rover - on Wednesday.

"We have been told that the MoU will be signed on Wednesday," Andrew Dodgson of the influential workers' union Unite, which represents Ford workers, told IANS.

According to Dodgson, Tata has agreed to retain the manufacturing base of the two marques in Britain and source the supply of engines and transmission from Britain.

On its part Ford, the American carmaker which owns the iconic British brands, has agreed to plug a "substantial" deficit in the workers' pension fund. "They have either put some money in or plan to do it," Dodgson said.

Tata, whose offer is said to be in the region of $2 bn, has assured Ford that it has no plans to 'Indianise' Jaguar and Land Rover.

Group chairman Ratan Tata said recently the practice of moulding an acquired company to look and function more like its new parent is a "more Anglo-Saxon" phenomenon, with "an expectation that if you're acquired, you will look like the owner."

He seems to have soothed the nerves of British workers, with Dodgson saying, "We're quite happy with what we have. After all kinds of rumours about job losses, the story is that that's not going to happen."

Scotching rumours of outsourcing, Tata is said to have assured Unite that it will keep all three of Jaguar and Land Rover's British plants at Solihull and Castle Bromwich in the Midlands and Halewood on Merseyside.

While Unite represents some 12,000 Ford workers, Dodgson said the total number of jobs at stake could be anywhere between 35,000 and 40,000 when ancillaries are taken into account.

Ford acquired Jaguar for $2.5 bn in 1989 and Land Rover for $2.75 bn in 2000 but put them on the market last year after posting losses of $12.6 bn in 2006 - the heaviest in its 103-year history.