The 2018 Jaguar XJ swaddles its occupants in leather, delivers them in style, and offers sporty road manners for a large car due to its lightweight construction.

The 2018 Jaguar XJ is a full-size luxury sedan and the automaker's finest.The 2018 Jaguar XJ is a full-size luxury sedan and the automaker's finest.

It signaled a new era for Jaguar when it was released several years ago, and has aged well since.Jaguar XJ

Its lightweight construction makes it somewhat fun to drive, which includes the new high-powered XJR575.

It's available in short- or long-wheelbase configuration, with a V-6 or V-8 and available all-wheel drive.

The XJ doesn’t offer as many performance choices as its rivals, and its back seat suffers due to its sloping roofline, but it comes in at a lower price and its British take on luxury earns

That XJR575 is the big news for 2018. It replaces the XJR, and an engine calibration change increases output of the supercharged 5.0-liter V-8 from 550 to 575 horsepower.

Other changes for 2018 include a new 10-inch center touchscreen that replaces an 8.0-inch unit; in-car wi-fi enabled by a 4G connection

new safety technologies including forward-collision warnings with automatic emergency braking, lane-departure warnings with active lane control

In addition to the 575-hp V-8, Jaguar offers a 470-hp version of the same engine in its XJ and XJL Supercharged models.

These are good for a 0-60 mph time of less than five seconds, while the 340-hp supercharged 3.0-liter V-6 in the XJ R-Sport and XJL Portfolio can vault the car to 60 mph in just less than six seconds.

Fuel economy for the V-6 is decent at 18 mpg city, 27 highway, 21 combined. The V-8, however, does no better than 18 mpg combined.

Handling and ride quality vary by model. The XJ is generally quite composed and its aluminum body construction makes it lighter and sportier than most rivals

All models come with adjustable dampers and a rear air suspension that combine to smooth out most bumps

Inside, the XJ is well-equipped, swathed in leather and chrome, and quite roomy for front passengers.