Jaguar takes to Moscow and its international motor show to reveal the new XFR Speed Pack, as well as the all-wheel-drive versions of the XF and XJ models. The XFR with the speed pack is the most interesting car of the lot though, as it comes with revised suspension and aerodynamics, and ability to hit a top speed of 174 mph.

That is the main appeal of the speed pack. Normal XFRs, like all fast European saloons, are limited to 155 mpg. But if you pay extra for this package, Jaguar will unlock the top speed. Well, they don’t unlock it really, but raise the limit to 174. That’s cool.

The 510PS XFR Speed Pack car is equipped with revised engine and gearbox calibration to match the increased top speed. A new front aero splitter and a new rear wing distinguish the Speed Pack car.

As for the AWD models, as we reported earlier, they come only with new 3.0-litre V6 supercharged petrol engine in 340PS form driving through an eight-speed automatic transmission, and are only available in a few markets.