Already used in the Jaguar XE, the 2.0-litre four-cylinder Ingenium diesel engine is designed to deliver class-leading torque and power outputs, combined with excellent refinement, reduced CO2 emissions and lower fuel consumption, and will be used to replace the existing 2.2 diesel engine.

Two outputs will be offered – 148bhp / 280lb.ft and 178bhp / 317lb.ft. The new lower-powered derivative provides fuel economy of up to 57.7mpg and CO2 emissions from 129g/km, whilst the TD4 178bhp delivers 139g/km and 53.3 mpg on the combined cycle.

The 148bhp version will be designated an ‘E-Capability’ vehicle, with a blue ‘Sport’ badge highlighting the most efficient variant. It will also feature 18-inch wheels with low rolling resistance tyres and marks the entry of a five-seat option in the UK for the first time. All other variants come with 5+2 seating as standard.

The new engine sees service intervals rise from 16,000 to 21,000 miles.

Pricing for the higher-powered engine remains the same as for the outgoing diesel whilst the new TD4 148bhp engine brings a lower starting price of £30,695 for the manual five seat ‘SE’ trim.

The revised model line-up also sees the addition of the HSE Black, which builds on the existing HSE specification and features the Black Pack and privacy glass. The HSE Black Auto is priced at £41,250 on the road.

The new Ingenium engine is available to order now with first customer deliveries commencing from September 2015.