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The X4 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 X4 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.
Over 200 people are killed each year when backed over by motor vehicles. The X4 M offers optional Active Park Distance Control that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Grand Cherokee SRT doesn’t offer backup collision prevention brakes.
The X4 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 X4 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 X4 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.
The X4 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 X4 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 X4 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.
For smoother operation, better efficiency and fewer moving parts, the engines in the X4 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.
The X4 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.
On the EPA test cycle the X4 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 X4 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 X4 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.
In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the BMW X4 M higher (3 out of 10) than the Jeep Grand Cherokee SRT (1). This means the X4 M produces up to 22.5 pounds less smog-producing pollutants than the Grand Cherokee SRT every 15,000 miles.
For better stopping power the X4 M’s brake rotors are larger than those on the Grand Cherokee SRT:
Grand Cherokee SRT
The X4 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 X4 M Competition has standard 21-inch wheels. The Grand Cherokee SRT’s largest wheels are only 20-inches.
The BMW X4 M may be more efficient, handle and accelerate better because it weighs about 600 pounds less than the Jeep Grand Cherokee SRT.
To make loading groceries and cargo easier when your hands are full, the X4 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.
The X4 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 X4 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 X4 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 X4 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 X4 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 X4 M offers an optional wireless phone charging system (Qi) in the center console. The Grand Cherokee SRT doesn’t offer wireless personal charging.
The X4 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.
© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.
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