With a top speed of 299km/h, the Jaguar XJR575 is approaching F Type SVR levels of fast.

The new super saloon is also bestowed the same 423kW/700Nm as the F Type SVR, but the extra weight (kerb weight is 1,875kg) that comes with it means its dash to 100km/h is a tad slower at 4.4 seconds.

But, as demonstrated in the reveal video, the XJR can continue on to its top speed in about 44 seconds.

2018 Jaguar XJR575 front

The 575 also scores two new exclusive colour options, Velocity Blue and Satin Corris Grey, plus an XJR-specific rear spoiler, side sills, front bumper and lower air intakes.

2018 Jaguar XJR575 wheel

Jaguar design boss Ian Callum says the extra performance focus in the XJR575 hasn’t detracted from the Jag’s ‘comfortable’ feel.

2018 Jaguar XJR575 interior

“Jaguar is the standard bearer for interior refinement and the XJR575 is no different. It can go very quickly, but it does so with the serene comfort customers expect from a Jaguar saloon.

2018 Jaguar XJR575 seats

The 2018 Jaguar XJ range goes on sale towards the end of 2017, though Australian numbers (if any) and pricing for the XJR575 is yet to be announced.