Inside, there's a new 10-inch touchscreen - which is also available on regular models now - 4G Wi-Fi connectivity, diamond-quilted leather seats and, of course, more XJR badging.
"We've engineered the XJ to deliver even greater levels of luxury and performance". As regards for safety, the XJ range now has forward traffic detection, which helps with forward visibility is restricted, lane keep assist, autonomous emergency braking with pedestrian detection, and driver condition monitoring, among other things.
Jaguar's new XJR575 is the drawcard for the 2018 update with the brand's 5.0-litre supercharged V8 petrol unit that now produces 423kW and 700Nm - a rise of 19kW and 20Nm compared to the outgoing XJR. With 571 lb-ft of torque it hits terminal velocity (186 mph) in 44 seconds, proven by Jag designer Wayne Burgess, who conducted the above interview about the auto during its less-than-a-minute top speed run. That groundswell of power is enough to zap the aluminum-bodied four-door to 60 miles per hour in just 4.2 seconds and bound all the way on to a top speed of 186 miles per hour. It also comes it two specialty colors: Velocity Blue and Satin Corris Gray.More news: Ben Affleck Denies Rumors He Is Exiting 'Batman'
Large gloss black 20-inch alloys are standard that hide a set of bright red brake callipers.
Ian Callum, Jaguar director of design, said:"The Jaguar XJ is the largest model in our saloon vehicle line-up and retains the physical presence and graceful design customers expect from a Jaguar flagship".
Jaguar's new XJR575 is its fastest sedan to date.More news: The Great American Eclipse is only one month away!
"The very latest technology and peak of Jaguar performance are now available in our flagship model, adding to the already impressive package of style, comfort and agility". XJR575s also have a rear spoiler, side sills, a unique front bumper and lower air intakes with gloss black surrounds. "That makes this a very special vehicle indeed".
Apart from the more powerful XJR575, the updates to the 2018 XJ includes new technological features and interior design improvements.
As for the XJR575, Jaguar will announce official pricing later this year.More news: USA intensifies clampdown on Nigerians, Brazilians, others with overstayed visas