Jaguar has been coy about exterior changes to the executive saloon, choosing to dress it in camouflage before the big unveiling at the car show.
However, it has confirmed a 2.2-litre diesel engine developing 188bhp and providing a top speed of 141mph. Its 0-62mph sprint time is improved over the current XF by 0.4 seconds to 8.5 seconds, but Jaguar has delivered lower CO2 emissions alongside better performance.
CO2 emissions are below 140g/km for the first time on the XF and fuel economy is expected to be over 50mpg.
The new 2012 Jaguar XF will appear at Motorexpo alongside updated versions of the Jaguar XJ luxury saloon and XK coupe and convertible versions.
The high-performance XKR will also appear with some exterior updates for the show, which is the biggest free motor show in the UK.
Graeme Carver, Motorexpo’s CEO. "Now in its sixteenth year, Motorexpo is by far the country’s biggest free motor show, so it’s appropriate that leading car makers use it as a platform from which to launch exciting new products."
The show will start on Monday 6 June and run until 12 June at London’s Canary Wharf. Other appearances include Jaguar’s sister brand, Land Rover.
Land Rover will use the show to introduce the Range Rover Evoque in both three- and five-door models and two- and four-wheel drive configurations.
The first Range Rover to fall beneath £30,000 will be deliver to the first UK customers in September, and order books are now open for the eagerly anticipated compact luxury SUV.
Another manufacturer with British roots, Vauxhall, will be offering test drives of its new extended range electric vehicle, the Vauxhall Ampera, at the show alongside several other brands.