2019 Mercedes E-Class Sedan vs. 2019 Cadillac XTS

Detailed Review, Specifications & Comparison

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For enhanced safety, the front and rear seat shoulder belts of the Mercedes E-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Cadillac XTS doesn’t offer pretensioners for the rear seat belts.

The E-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The XTS doesn’t offer pre-crash pretensioners.

The rear seatbelts optional on the E-Class Sedan 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 XTS doesn’t offer inflatable seatbelts.

The E-Class Sedan’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The XTS doesn’t offer a driver alert monitor.

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

For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, its standard front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the E-Class Sedan its highest rating: “Top Pick Plus” for 2018, a rating granted to only 28 vehicles tested by the IIHS. The XTS has not been fully tested, yet.


To reliably power the ignition and other systems and to recharge the battery, the E-Class Sedan has a standard 180-amp alternator. The XTS’ 170-amp alternator isn’t as powerful.

To reliably start during all conditions and help handle large electrical loads, the E-Class Sedan has a standard 850-amp battery. The XTS’ 660-amp battery isn’t as powerful.

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 E-Class Sedan’s reliability 49 points higher than the XTS.

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 Cadillac vehicles. J.D. Power ranks Mercedes 15th in reliability. With 39 more problems per 100 vehicles, Cadillac is ranked 27th.

From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Mercedes vehicles are more reliable than Cadillac vehicles. Consumer Reports ranks Mercedes 13 places higher in reliability than Cadillac.


The E-Class Sedan has more powerful engines than the XTS:




E 300 Sedan 2.0 turbo 4 cyl.

241 HP

273 lbs.-ft.

E 450 4MATIC Sedan 3.0 turbo V6

362 HP

369 lbs.-ft.

AMG E 53 Sedan 3.0 turbo 6 cyl. hybrid

429 HP

384 lbs.-ft.


304 HP

264 lbs.-ft.

XTS V-Sport 3.6 turbo V6

410 HP

369 lbs.-ft.

As tested in Car and Driver the E 300 Sedan is faster than the Cadillac XTS V6:




Zero to 30 MPH

2.2 sec

2.7 sec

Zero to 60 MPH

6.5 sec

6.9 sec

Zero to 100 MPH

17.7 sec

17.9 sec

Quarter Mile

15 sec

15.4 sec

Fuel Economy and Range

On the EPA test cycle the AMG E 53 Sedan gets better fuel mileage than the XTS AWD (21 city/28 hwy vs. 17 city/26 hwy).

On the EPA test cycle the E-Class Sedan gets better fuel mileage than the XTS:








22 city/30 hwy

19 city/28 hwy




21 city/29 hwy

17 city/26 hwy




20 city/28 hwy

16 city/23 hwy

turbo V6

Regenerative brakes improve the E-Class Sedan 53 AMG’s fuel efficiency by converting inertia back into energy instead of wasting it. The XTS doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the E-Class Sedan’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The XTS doesn’t offer an automatic engine start/stop system.

The E-Class Sedan 450/AMG 53’s standard fuel tank has 1.1 gallons more fuel capacity than the XTS AWD’s standard fuel tank (21.1 vs. 20 gallons).


A nine-speed automatic is standard on the Mercedes E-Class Sedan, for better acceleration and lower engine speed on the highway. Only a six-speed automatic is available for the XTS.

Brakes and Stopping

For better stopping power the AMG E 53 Sedan’s front brake rotors are larger than those on the XTS:


AMG E 53


Front Rotors

14.6 inches

13.6 inches

Rear Rotors

14.2 inches

12.4 inches

The E-Class Sedan stops much shorter than the XTS:


E-Class Sedan



70 to 0 MPH

154 feet

179 feet

Car and Driver

60 to 0 MPH

106 feet

116 feet

Motor Trend

Tires and Wheels

The E-Class Sedan’s optional 275/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the XTS’ optional 40 series tires.

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

Suspension and Handling

The E-Class Sedan has standard front and rear stabilizer bars, which help keep the E-Class Sedan flat and controlled during cornering. The XTS’ suspension doesn’t offer a rear stabilizer bar.

The E-Class Sedan’s 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 XTS doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the E-Class Sedan’s wheelbase is 4 inches longer than on the XTS (115.7 inches vs. 111.7 inches).

For better handling and stability, the average track (width between the wheels) on the E-Class Sedan is 1.7 inches wider in the front and 1.1 inches wider in the rear than the track on the XTS.

The E-Class Sedan’s front to rear weight distribution is more even (54.2% to 45.8%) than the XTS’ (57.8% to 42.2%). This gives the E-Class Sedan more stable handling and braking.

The E-Class Sedan 4MATIC handles at .92 G’s, while the XTS AWD pulls only .79 G’s of cornering force in a Car and Driver skidpad test.

The E-Class Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver 2.5 seconds quicker than the XTS AWD (25.1 seconds @ .77 average G’s vs. 27.6 seconds @ .63 average G’s).


The Mercedes E-Class Sedan may be more efficient, handle and accelerate better because it weighs about 50 to 250 pounds less than the Cadillac XTS.

The E-Class Sedan is 7.1 inches shorter than the XTS, making the E-Class Sedan easier to handle, maneuver and park in tight spaces.

As tested by Car and Driver while under full throttle, the interior of the E 300 Sedan 4MATIC is quieter than the XTS AWD (76 vs. 78 dB).

Passenger Space

The E-Class Sedan has .4 inches more rear headroom and .8 inches more rear shoulder room than the XTS.

Cargo Capacity

A low lift-over trunk design makes loading and unloading the E-Class Sedan easier. The E-Class Sedan’s trunk lift-over height is 27.7 inches, while the XTS’ liftover is 30 inches.

To make loading and unloading groceries and cargo easier when your hands are full, the E-Class Sedan’s power trunk can be opened or closed just by kicking your foot under the back bumper, leaving your hands completely free. The XTS doesn’t offer a power or hands-free opening trunk.

Servicing Ease

The engine in the E-Class Sedan is mounted longitudinally (North-South), instead of sideways, as in the XTS. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.


If the windows are left open on the E-Class Sedan the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the XTS can only close the windows from inside the vehicle, with the ignition on.

The E-Class Sedan has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent vandalism, such as sugar in the tank and fuel theft. The XTS doesn’t offer a locking fuel door.

The E-Class Sedan’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The XTS’ standard manually variable intermittent wipers have to be constantly adjusted.

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

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

Model Availability

The Mercedes E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Cadillac XTS isn’t available as a coupe, convertible or station wagon.

Economic Advantages

The E-Class Sedan will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the E-Class Sedan will retain 38.57% to 39.14% of its original price after five years, while the XTS only retains 34.07% to 36.66%.


Consumer Reports® recommends the Mercedes E-Class Sedan, based on reliability, safety and performance. The Cadillac XTS isn't recommended.

The E-Class was chosen as one of Car and Driver’s “Top Ten” in 2018. The XTS has never been a Car and Driver “Top Ten” pick.

The Mercedes E-Class outsold the Cadillac XTS by almost three to one during the 2018 model year.

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

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