2019 Mercedes S-Class vs. 2019 Jaguar XJ

Detailed Review, Specifications & Comparison

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Safety

The rear seatbelts optional on the S-Class inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The XJ doesn’t offer inflatable seatbelts.

An active infrared night vision system optional on the S-Class helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then displays the image on a monitor in the dashboard. The XJ doesn’t offer a night vision system.

Both the S-Class and the XJ have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, driver alert monitors, available all wheel drive, around view monitors and rear cross-path warning.

Warranty

There are over 2 times as many Mercedes dealers as there are Jaguar dealers, which makes it much easier should you ever need service under the S-Class’ warranty.

Reliability

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the S-Class’ reliability 15 points higher than the XJ.

J.D. Power and Associates rated the S-Class third among large premium cars in their 2018 Initial Quality Study. The XJ isn’t in the top three.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Jaguar vehicles. J.D. Power ranks Mercedes 14th in initial quality, above the industry average. With 56 more problems per 100 vehicles, Jaguar is ranked 30th, below the industry average.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Jaguar vehicles. J.D. Power ranks Mercedes 15th in reliability. With 12 more problems per 100 vehicles, Jaguar is ranked 20th.

Engine

The S-Class has more powerful engines than the XJ:

 

Horsepower

Torque

S 450 3.0 turbo V6

362 HP

369 lbs.-ft.

S 560 4.0 turbo V8

463 HP

516 lbs.-ft.

AMG S 63 4.0 turbo V8

603 HP

664 lbs.-ft.

AMG S 65/Maybach S 650 6.0 turbo V12

621 HP

738 lbs.-ft.

XJ 3.0 supercharged V6

340 HP

332 lbs.-ft.

XJ Supercharged 5.0 V8

470 HP

424 lbs.-ft.

XJR575 5.0 supercharged V8

575 HP

517 lbs.-ft.

As tested in Car and Driver the S 560 is faster than the Jaguar XJ 3.0 Supercharged:

 

S-Class

XJ

Zero to 60 MPH

4.9 sec

5.2 sec

Zero to 100 MPH

11.5 sec

12.7 sec

5 to 60 MPH Rolling Start

5.2 sec

5.5 sec

Quarter Mile

13.4 sec

13.8 sec

Speed in 1/4 Mile

108 MPH

104 MPH

Top Speed

132 MPH

125 MPH

Fuel Economy and Range

On the EPA test cycle the S-Class gets better fuel mileage than the XJ:

 

 

S-Class

XJ

 

RWD

450/Auto

19 city/28 hwy

18 city/27 hwy

3.0 Supercharged/Auto

 

560/Auto

17 city/27 hwy

15 city/23 hwy

5.0 Supercharged/Auto

AWD

450/Auto

18 city/28 hwy

17 city/26 hwy

3.0 Supercharged/Auto

 

 

n/a

17 city/25 hwy

3.0 Supercharged/Auto LWB

 

560/Auto

17 city/27 hwy

n/a

 

 

AMG 63/Auto

17 city/26 hwy

n/a

 

An engine control system that can shut down half of the engine’s cylinders helps improve the S-Class 560/63’s fuel efficiency. The XJ doesn’t offer a system that can shut down part of the engine.

Regenerative brakes improve the S-Class Hybrid’s fuel efficiency by converting inertia back into energy instead of wasting it. The XJ doesn’t offer a regenerative braking system.

The S-Class V12’s standard fuel tank has 3.5 gallons more fuel capacity than the XJ (24.6 vs. 21.1 gallons).

Transmission

A nine-speed automatic is available on the Mercedes S-Class, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the XJ.

The S-Class 63/65’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The XJ doesn’t offer launch control.

Brakes and Stopping

For better stopping power the S-Class’ brake rotors are larger than those on the XJ:

 

S 450/560

S 63/65

XJ

XJ Supercharged/XJR

Front Rotors

14.6 inches

16.5 inches

14 inches

15 inches

Rear Rotors

14.2 inches

14.2 inches

12.8 inches

14.8 inches

The S-Class S 63/65 offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The XJ doesn’t offer ceramic brake rotors.

The S-Class stops shorter than the XJ:

 

S-Class

XJ

 

60 to 0 MPH

114 feet

121 feet

Motor Trend

Tires and Wheels

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the S-Class can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The XJ doesn’t offer run-flat tires.

Suspension and Handling

The front and rear suspension of the S-Class uses air springs for a smoother, controlled ride than the XJ, which uses coil springs in front. Air springs maintain proper ride height and ride more smoothly.

The S-Class offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Jaguar doesn’t offer an active suspension on the XJ.

The S-Class’ drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The XJ doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the S-Class’ wheelbase is longer than on the XJ:

 

S-Class

XJ

SWB Sedan

124.6 inches

119.4 inches

LWB Sedan

132.5 inches

124.3 inches

For better handling and stability, the average track (width between the wheels) on the S-Class is .3 inches wider in the front and 1.4 inches wider in the rear than the track on the XJ.

The S 600 handles at .90 G’s, while the XJL Portfolio pulls only .85 G’s of cornering force in a Motor Trend skidpad test.

The S 600 executes Motor Trend’s “Figure Eight” maneuver quicker than the XJL Portfolio (25.8 seconds @ .75 average G’s vs. 26.4 seconds @ .66 average G’s).

For better maneuverability, the S AMG S 65’s turning circle is .9 feet tighter than the XJ’s (38.1 feet vs. 39 feet). The S 450/560’s turning circle is 1.9 feet tighter than the XJL AWD’s (40.4 feet vs. 42.3 feet).

Chassis

As tested by Car and Driver while at idle, the interior of the S 560 is quieter than the XJ Supercharged (40 vs. 42 dB).

Passenger Space

The S-Class has 10 cubic feet more passenger volume than the XJ (112 vs. 102).

The S-Class has .2 inches more front headroom, 2.1 inches more front shoulder room, .2 inches more rear headroom and 2.5 inches more rear shoulder room than the XJ.

Cargo Capacity

The S-Class has a much larger trunk than the XJ (16.3 vs. 15.2 cubic feet).

A low lift-over trunk design makes loading and unloading the S-Class easier. The S-Class’ trunk lift-over height is 27.4 inches, while the XJ’s liftover is 28.5 inches.

To make loading groceries and cargo easier when your hands are full, the S-Class’ available trunk can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The XJ doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Jaguar. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 27% lower rating, Jaguar is ranked 15th.

Ergonomics

The S-Class offers an optional heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The XJ doesn’t offer a heads-up display.

Heated windshield washer fluid is standard on the S-Class to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The XJ doesn’t offer heated windshield washer fluid.

To better shield the driver and front passenger’s vision, the S-Class has standard dual-element sun visors that can block glare from two directions simultaneously. The XJ doesn’t offer secondary sun visors.

The S-Class has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The XJ doesn’t offer a house-current electrical outlet.

Model Availability

The Mercedes S-Class comes in coupe, convertible and sedan bodystyles; the Jaguar XJ isn’t available as a coupe or convertible.

Recommendations

Consumer Reports® recommends the Mercedes S-Class, based on reliability, safety and performance.

The Mercedes S-Class outsold the Jaguar XJ by over 8 to one during the 2018 model year.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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