2019 BMW X6 M vs. 2019 Jeep Grand Cherokee SRT

Detailed Review, Specifications & Comparison

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Safety

The X6 M’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Grand Cherokee SRT doesn’t offer pre-crash pretensioners.

A passive infrared night vision system optional on the X6 M helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The Grand Cherokee SRT doesn’t offer a night vision system.

The X6 M offers an optional Surround View Cameras to allow the driver to see objects all around the vehicle on a screen. The Grand Cherokee SRT only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The X6 M’s optional 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 Grand Cherokee SRT doesn’t offer a driver alert monitor.

Both the X6 M and the Grand Cherokee SRT have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, plastic fuel tanks, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems and rearview cameras.

Warranty

The X6 M comes with a full 4-year/50,000-mile basic warranty, which covers the entire truck and includes 24-hour roadside assistance. The Grand Cherokee SRT’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.

The X6 M’s corrosion warranty is 7 years longer than the Grand Cherokee SRT’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the X6 M for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Jeep doesn’t pay scheduled maintenance for the Grand Cherokee SRT.

Reliability

For smoother operation, better efficiency and fewer moving parts, the X6 M has an overhead cam design, rather than the old pushrod design of the engine in the Grand Cherokee SRT.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Jeep vehicles. J.D. Power ranks BMW 11th in initial quality, above the industry average. With 9 more problems per 100 vehicles, Jeep is ranked 17th, 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 BMW vehicles are more reliable than Jeep vehicles. J.D. Power ranks BMW 8th in reliability, above the industry average. With 61 more problems per 100 vehicles, Jeep is ranked 28th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Jeep vehicles. Consumer Reports ranks BMW 14 places higher in reliability than Jeep.

Engine

The X6 M’s 4.4 turbo V8 produces 92 more horsepower (567 vs. 475) and 83 lbs.-ft. more torque (553 vs. 470) than the Grand Cherokee SRT’s 6.4 V8.

As tested in Motor Trend the BMW X6 M is faster than the Jeep Grand Cherokee SRT:

 

X6 M

Grand Cherokee

Zero to 60 MPH

3.7 sec

4.4 sec

Quarter Mile

12.1 sec

13.1 sec

Speed in 1/4 Mile

114.3 MPH

103.6 MPH

Fuel Economy and Range

On the EPA test cycle the X6 M gets better fuel mileage than the Grand Cherokee SRT (14 city/19 hwy vs. 13 city/19 hwy).

Regenerative brakes improve the X6 M’s fuel efficiency by converting inertia back into energy instead of wasting it. The Grand Cherokee SRT doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the X6 M’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 Grand Cherokee SRT doesn’t offer an automatic engine start/stop system.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW X6 M higher (3 out of 10) than the Jeep Grand Cherokee SRT (1). This means the X6 M produces up to 22.5 pounds less smog-producing pollutants than the Grand Cherokee SRT every 15,000 miles.

The EPA certifies the BMW X6 M as an “Ultra Low Emissions Vehicle” (ULEV). The Jeep Grand Cherokee SRT is only certified to “Low Emissions Vehicle” (LEV) standards.

Brakes and Stopping

For better stopping power the X6 M’s brake rotors are larger than those on the Grand Cherokee SRT:

 

X6 M

Grand Cherokee

Front Rotors

15.6 inches

15 inches

Rear Rotors

15.2 inches

13.78 inches

The X6 M stops shorter than the Grand Cherokee SRT:

 

X6 M

Grand Cherokee

 

60 to 0 MPH

105 feet

106 feet

Motor Trend

Tires and Wheels

For better traction and acceleration, the X6 M has larger rear tires than the Grand Cherokee SRT (325/30R21 vs. 295/45R20).

The X6 M’s 285/35R21 front and 325/30R21 rear tires provide better handling because they have a lower 35 series front and 30 series rear profile (height to width ratio) that provides a stiffer sidewall than the Grand Cherokee SRT’s standard 45 series tires.

For better ride, handling and brake cooling the X6 M has standard 21-inch wheels. Only 20-inch wheels are available on the Grand Cherokee SRT.

Suspension and Handling

The rear suspension of the X6 M uses air springs for a smoother, controlled ride than the Grand Cherokee SRT, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The X6 M offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Jeep doesn’t offer an active suspension on the Grand Cherokee SRT.

The X6 M has a standard automatic rear load leveling suspension to keep ride height level with a heavy load or when towing. The Grand Cherokee SRT doesn’t offer a load leveling suspension.

The X6 M’s front to rear weight distribution is more even (51.6% to 48.4%) than the Grand Cherokee SRT’s (55% to 45%). This gives the X6 M more stable handling and braking.

The X6 M handles at .98 G’s, while the Grand Cherokee SRT pulls only .88 G’s of cornering force in a Motor Trend skidpad test.

The X6 M executes Motor Trend’s “Figure Eight” maneuver 2.1 seconds quicker than the Grand Cherokee SRT (24.3 seconds @ .84 average G’s vs. 26.4 seconds @ .71 average G’s).

Cargo Capacity

To make loading groceries and cargo easier when your hands are full, the X6 M’s liftgate can be opened and closed just by kicking your foot under the back bumper, leaving your hands completely free. The Grand Cherokee SRT doesn’t offer a hands-free gesture to open its liftgate, forcing you to put cargo down if your hands are full.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that BMW service is better than Jeep. J.D. Power ranks BMW 8th in service department satisfaction (above the industry average). With a 73% lower rating, Jeep is ranked 28th.

Ergonomics

Unlike the driver-only memory system in the Grand Cherokee SRT, the X6 M has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.

The X6 M offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Grand Cherokee SRT doesn’t offer a heads-up display.

The X6 M’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Grand Cherokee SRT’s rear power window switches have to be held the entire time to open or close them fully.

Heated windshield washer nozzles are standard on the X6 M to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Grand Cherokee SRT doesn’t offer heated windshield washer nozzles.

To help drivers avoid possible obstacles, the X6 M has standard cornering lights to illuminate around corners when the turn signals are activated. The Grand Cherokee SRT doesn’t offer cornering lights. The X6 M also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

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

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