2021 BMW X3 M vs. 2020 Jeep Grand Cherokee SRT

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/11

The X3 M’s 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.

The X3 M has standard PostCrash iBrake, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Grand Cherokee SRT doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

The X3 M offers an optional Surround View 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 X3 M’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 Grand Cherokee SRT doesn’t offer a driver alert monitor.

Both the X3 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, rearview cameras and rear cross-path warning.

Warranty

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The X3 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 X3 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 X3 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

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/11

For smoother operation, better efficiency and fewer moving parts, the engines in the X3 M have an overhead cam design, rather than the old pushrod design of the engine in the Grand Cherokee SRT.

J.D. Power and Associates’ 2019 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 7th in reliability, above the industry average. With 45 more problems per 100 vehicles, Jeep is ranked 24th.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that BMW vehicles are more reliable than Jeep vehicles. Consumer Reports ranks BMW 9 places higher in reliability than Jeep.

Engine

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The X3 M Competition’s standard 3.0 turbo 6-cylinder produces 28 more horsepower (503 vs. 475) than the Grand Cherokee SRT’s 6.4 V8.

As tested in Motor Trend the X3 M Competition is faster than the Jeep Grand Cherokee SRT:

X3 M

Grand Cherokee SRT

Zero to 60 MPH

4 sec

4.4 sec

Quarter Mile

12.3 sec

13.1 sec

Speed in 1/4 Mile

117.3 MPH

103.6 MPH

Fuel Economy and Range

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/11

On the EPA test cycle the X3 M with its standard engine gets better city fuel mileage than the Grand Cherokee SRT (14 city/19 hwy vs. 13 city/19 hwy).

Regenerative brakes improve the X3 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 X3 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

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW X3 M higher (3 out of 10) than the Jeep Grand Cherokee SRT (1). This means the X3 M produces up to 22.5 pounds less smog-producing pollutants than the Grand Cherokee SRT every 15,000 miles.

Brakes and Stopping

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For better stopping power the X3 M’s brake rotors are larger than those on the Grand Cherokee SRT:

X3 M

Grand Cherokee SRT

Front Rotors

15.6 inches

15 inches

Rear Rotors

14.6 inches

13.8 inches

The X3 M stops shorter than the Grand Cherokee SRT:

X3 M

Grand Cherokee SRT

60 to 0 MPH

104 feet

106 feet

Motor Trend

Tires and Wheels

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The X3 M Competition’s tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Grand Cherokee SRT’s 45 series tires.

For better ride, handling and brake cooling the X3 M Competition has standard 21-inch wheels. The Grand Cherokee SRT’s largest wheels are only 20-inches.

Suspension and Handling

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/08/11

The X3 M’s front to rear weight distribution is more even (50.1% to 49.9%) than the Grand Cherokee SRT’s (55% to 45%). This gives the X3 M more stable handling and braking.

The X3 M Competition handles at .95 G’s, while the Grand Cherokee SRT pulls only .88 G’s of cornering force in a Motor Trend skidpad test.

The X3 M Competition executes Motor Trend’s “Figure Eight” maneuver 2.2 seconds quicker than the Grand Cherokee SRT (24.2 seconds @ .86 average G’s vs. 26.4 seconds @ .71 average G’s).

Chassis

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The BMW X3 M may be more efficient, handle and accelerate better because it weighs about 600 pounds less than the Jeep Grand Cherokee SRT.

The X3 M is 3.6 inches shorter than the Grand Cherokee SRT, making the X3 M easier to handle, maneuver and park in tight spaces.

Passenger Space

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The front step up height for the X3 M is 2.2 inches lower than the Grand Cherokee SRT (18.5” vs. 20.7”). The X3 M’s rear step up height is 2.3 inches lower than the Grand Cherokee SRT’s (18.5” vs. 20.8”).

Cargo Capacity

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A low lift-over cargo hatch design makes loading and unloading the X3 M easier. The X3 M’s cargo hatch lift-over height is 28.5 inches, while the Grand Cherokee SRT’s liftover is 32.6 inches.

Pressing a switch automatically lowers the X3 M’s rear seats, to make changing between passengers and cargo easier. The Grand Cherokee SRT doesn’t offer automatic folding seats.

To make loading groceries and cargo easier when your hands are full, the X3 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.

Ergonomics

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The X3 M 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 Grand Cherokee SRT doesn’t offer a heads-up display.

The X3 M’s power parking brake sets with one touch and releases with one touch or automatically. The Grand Cherokee SRT’s parking brake has to released manually.

The X3 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.

To help drivers avoid possible obstacles, the X3 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 X3 M also has standard adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the BMW X3 M offers an optional wireless phone charging system (Qi) in the center console. The Grand Cherokee SRT doesn’t offer wireless personal charging.

The X3 M’s optional Parking Assistant Plus can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Grand Cherokee SRT’s automatic parking system requires operating the brakes and transmission to safely park.

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