It’s the most efficient Jaguar engine yet – a new 2.2litre model has been unveiled by the company that is capable of returning 52.3mpg on the combined cycle with emissions at just 149g/km of CO2.
The vehicle develops 190PS and 332lb-ft of torque and displaces 2,179cc. It includes a water-cooled turbocharger with low friction pistons, as well as new injectors and a crankshaft. This allowed the Jaguar engineers to add a new oil pan and electronics system that affects the crankshaft and allows an intelligent stop-start system to operate efficiently.
Thanks to the inclusion of a new crankshaft sensor and fuel rail pressure, the intelligent stop-start system reduces the time spent in shutdown and start-up phase. Jaguar believes this is best demonstrated during the approach to a busy roundabout – such as when a driver briefly brings the vehicle to a stop only to move off quickly again. In usual systems the engine would need to shutdown completely before restarting, but with the Jaguar system it is restarted while moving down from as little as 400rpm. This system alone is estimated to increase fuel efficiency by five-seven per cent.
In addition, the vehicle includes an eight-speed ZF automatic gearbox and can accelerate to 62mph in just 8.5seconds with a maximum speed of 140mph.
It is expected to feature in a future XF production car with an on-sale date to be announced at the New York Auto Show.
