From Jaguar press: The new generation of Jaguar XK sports coupe and convertible has all-new engines giving more power and performance with greater efficiency; revised 
exterior styling and interior enhancements

- Advanced aluminium body architecture is strong and light-weight and the key to optimising performance, dynamic agility, competitive CO2 emissions and fuel economy

- All-new AJ-V8 Gen III direct-injection engines are the most advanced and efficient engines Jaguar has ever produced.

Built in the tradition of great grand tourers, with state-of-the-art engineering, aerospace-inspired construction and outstanding driving dynamics, the new XK is the latest in a long line of legendary performance Jaguars.

The new XK is a sophisticated grand tourer with the heart of a true sports car, combining effortless high-performance and state-of-the-art V8 powertrains with a new level of advanced technologies, intuitive control and Jaguars superbly crafted, new-fashioned luxury interiors.

In naturally aspirated form, the new AJ-V8 Gen III 5.0-litre engine delivers 385PS (SAE) and 380lb ft (515Nm) of torque respectively 26 and 23 percent more than its 4.2-litre predecessor.