2019 Mercedes A-Class vs. 2019 BMW 4 Series Gran Coupe

Detailed Review, Specifications & Comparison

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The A-Class’ 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 4 Series Gran Coupe doesn’t offer a driver alert monitor.

Both the A-Class and the 4 Series Gran Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, 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 and around view monitors.


There are over 10 percent more Mercedes dealers than there are BMW dealers, which makes it easier should you ever need service under the A-Class’ warranty.

Fuel Economy and Range

On the EPA test cycle the A-Class gets better fuel mileage than the 4 Series Gran Coupe:








220 2.0 turbo 4 cyl.

24 city/35 hwy



220 2.0 turbo 4 cyl.

25 city/33 hwy

4 Series Gran Coupe



430i 2.0 turbo 4 cyl.

24 city/34 hwy



440i 3.0 turbo cyl.

21 city/32 hwy



430i 2.0 turbo 4 cyl.

23 city/33 hwy



440i 3.0 turbo 6 cyl.

21 city/31 hwy


The A-Class offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The 4 Series Gran Coupe doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

For better stopping power the A-Class’ standard front brake rotors are larger than those on the 4 Series Gran Coupe:



4 Series

Front Rotors

12.6 inches

12.3 inches

The A-Class stops much shorter than the 4 Series Gran Coupe:



4 Series


70 to 0 MPH

153 feet

186 feet

Car and Driver

Suspension and Handling

The A-Class’ 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 4 Series Gran Coupe doesn’t offer drift compensation steering.

The A 220 4MATIC handles at .95 G’s, while the 430i Gran Coupe pulls only .89 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the A-Class’ turning circle is 1 foot tighter than the 4 Series Gran Coupe’s (36.1 feet vs. 37.1 feet). The A-Class’ turning circle is 2.6 feet tighter than the 4 Series Gran Coupe xDrive’s (36.1 feet vs. 38.7 feet).


The Mercedes A-Class may be more efficient, handle and accelerate better because it weighs about 400 to 500 pounds less than the BMW 4 Series Gran Coupe.

The A-Class is 3.6 inches shorter than the 4 Series Gran Coupe, making the A-Class easier to handle, maneuver and park in tight spaces.

The design of the Mercedes A-Class amounts to more than styling. The A-Class has an aerodynamic coefficient of drag of .27 Cd. That is lower than the 4 Series Gran Coupe (.29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the A-Class get better fuel mileage.

Passenger Space

The A-Class has .4 inches more front headroom, .3 inches more front shoulder room, .3 inches more rear headroom and .2 inches more rear legroom than the 4 Series Gran Coupe.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than BMW. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 11% lower rating, BMW is ranked 8th.


The A-Class has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The 4 Series Gran Coupe doesn’t offer a remote starting system.

Unlike the driver-only memory system in the 4 Series Gran Coupe, the A-Class has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

Optional air-conditioned seats in the A-Class keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The 4 Series Gran Coupe doesn’t offer air-conditioned seats.

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

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