Compare the2022 BMW M5VS 2021 Mercedes AMG GT 4-Door

The BMW M5 has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The AMG GT 4-Door doesn’t offer a front passenger side knee airbag.

The M5 has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The AMG GT 4-Door 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 M5’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the AMG GT 4-Door.

Both the M5 and the AMG GT 4-Door have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available around view monitors.

The M5’s corrosion warranty is 7 years longer than the AMG GT 4-Door’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the M5 for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the AMG GT 4-Door.

J.D. Power and Associates’ 2020 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks BMW 18th in initial quality. With 26 more problems per 100 vehicles, Mercedes is ranked 30th.

J.D. Power and Associates’ 2021 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Mercedes vehicles. J.D. Power ranks BMW 10th in reliability, above the industry average. With 14 more problems per 100 vehicles, Mercedes is ranked 15th.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that BMW vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks BMW 8 places higher in reliability than Mercedes.

The M5 has more powerful engines than the AMG GT 4-Door:

As tested in Motor Trend the BMW M5 (base engine) is faster than the AMG GT 53 3.0 turbo 6-cylinder hybrid:

Regardless of its engine, regenerative brakes improve the M5’s fuel efficiency by converting inertia back into energy instead of wasting it. Mercedes only offers a regenerative brake system on the AMG GT 4-Door 43/53.

Both the M5 and the AMG GT 4-Door have a standard automatic start/stop engine feature to stop unnecessary fuel waste and pollution at stop lights and heavy traffic. All M5s have a standard disable switch for the system, so a driver can keep the engine from shutting off when the vehicle stops temporarily.

For better stopping power the M5’s brake rotors are larger than those on the AMG GT 4-Door:

The M5 stops much shorter than the AMG GT 4-Door:

For better traction, the M5 has larger front tires than the AMG GT 4-Door (F:275/40R19 & R:285/40R19 vs. F:255/45R19 & R:285/40R19).

The M5’s standard tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the AMG GT 4-Door’s standard 45 series front tires.

For a smoother ride and more stable handling, the M5’s wheelbase is 1.2 inches longer than on the AMG GT 4-Door (117.4 inches vs. 116.2 inches).

The M5 executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the AMG GT 53 (23.3 seconds @ .91 average G’s vs. 24.3 seconds @ .81 average G’s).

The BMW M5 may be more efficient, handle and accelerate better because it weighs about 400 to 500 pounds less than the Mercedes AMG GT 4-Door.

As tested by Car and Driver, the interior of the M5 is quieter than the AMG GT 63 S:

Because it has more passenger and cargo room, the EPA rates the M5 a Mid-size car, while the AMG GT 4-Door is rated a Compact.

The M5 has standard seating for 5 passengers; the AMG GT 4-Door can only carry 4.

The M5 has 7 cubic feet more passenger volume than the AMG GT 4-Door (103 vs. 96).

The M5 has .9 inches more front shoulder room and .3 inches more rear headroom than the AMG GT 4-Door.

With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the M5 offers cargo security. The AMG GT 4-Door’s hatchback body style, non-lockable folding seat and non-lockable remote release defeat cargo security.

A power rear sunshade and manual rear side window sunshades are optional in the M5 to help block heat and glare for the rear passengers. The AMG GT 4-Door doesn’t offer rear side window sunshades.

The M5 has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel costs extra on the AMG GT 4-Door.