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: 5.0-litre supercharged AJ-V8 Gen III R delivers 510PS (510bhp SAE), 625Nm of torque and propels XKR coupe to 60mph in just 4.6 seconds 5.0-litre naturally aspirated AJ-V8 Gen III engine delivers 385PS (385bhp SAE), 515Nm of torque and propels XK coupe to 60mph in just 5.2 seconds - Improved CO2 emissions performance (Euro Stage V compliant two years ahead of legislative requirement) and fuel economy comparable to the less powerful 4.2-litre engines they replace - New generation of XK is true to the heritage of Jaguars legendary performance, delivering a superb balance of dynamic ability and refinement - State-of-the-art six-speed automatic transmission has seamless gearshifts plus, for the first time on the XKR model, an electronic differential optimises traction and dynamic performance.
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. The XKRs supercharged 5.0-litre version delivers a mighty 510PS (510bhp SAE) and 461lb ft (625Nm) of torque improvements of 23 and 12 percent respectively over the supercharged 4.2-litre engine. On the road, while maximum speed remains under electronic control at 155mph (250kph), these power and torque gains allied to the lightweight aluminium body architecture of the XK dramatically improve acceleration times. For the naturally aspirated XK, 0-60mph is reduced to 5.2 seconds from 5.9 seconds (and 0-100kph from 6.2 to 5.5 seconds); for the supercharged XKR, 0-60mph is reduced to 4.6 seconds from 4.9 (and 0-100kph to 4.8 seconds from 5.2).
Source: Jaguar press