2019 Mercedes CLS vs. 2019 BMW 6 Series Gran Turismo

Detailed Review, Specifications & Comparison

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Safety

Both the CLS and the 6 Series Gran Turismo have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, driver alert monitors, available all wheel drive, lane departure warning systems, around view monitors and rear cross-path warning.

Warranty

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

Engine

The CLS 450’s standard 3.0 turbo 6 cyl. hybrid produces 27 more horsepower (362 vs. 335) and 39 lbs.-ft. more torque (369 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl. The AMG CLS 53’s standard 3.0 turbo 6 cyl. hybrid produces 94 more horsepower (429 vs. 335) and 54 lbs.-ft. more torque (384 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl.

Fuel Economy and Range

On the EPA test cycle the CLS gets better fuel mileage than the 6 Series Gran Turismo:

 

 

CLS

6 Series

 

RWD

450/Auto

24 city/31 hwy

n/a

 

AWD

450/Auto

23 city/30 hwy

20 city/28 hwy

640i/Auto

The CLS has 3.1 gallons more fuel capacity than the 6 Series Gran Turismo (21.1 vs. 18 gallons), for longer range between fill-ups.

Transmission

A nine-speed automatic is available on the Mercedes CLS, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the 6 Series Gran Turismo.

Brakes and Stopping

For better stopping power the CLS’ brake rotors are larger than those on the 6 Series Gran Turismo:

 

CLS

6 Series

Front Rotors

14.2 inches

13.7 inches

Rear Rotors

14.2 inches

13.6 inches

Tires and Wheels

For better traction and acceleration, the CLS has larger rear tires than the 6 Series Gran Turismo (275/35R19 vs. 245/45R19).

The CLS’ 245/40R19 front and 275/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the 6 Series Gran Turismo’s standard 45 series tires.

Suspension and Handling

The CLS’ 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 6 Series Gran Turismo doesn’t offer drift compensation steering.

For better maneuverability, the CLS’ turning circle is 1.9 feet tighter than the 6 Series Gran Turismo’s (39.1 feet vs. 41 feet).

Chassis

The Mercedes CLS may be more efficient, handle and accelerate better because it weighs about 200 to 350 pounds less than the BMW 6 Series Gran Turismo.

The CLS is 4.2 inches shorter than the 6 Series Gran Turismo, making the CLS easier to handle, maneuver and park in tight spaces.

The design of the Mercedes CLS amounts to more than styling. The CLS has an aerodynamic coefficient of drag of .27 Cd. That is lower than the 6 Series Gran Turismo (.29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the CLS get better fuel mileage.

Cargo Capacity

With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the CLS offers cargo security. The 6 Series Gran Turismo’s hatchback body style defeats cargo security.

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.

Ergonomics

A power rear sunshade is optional in the CLS to help block heat and glare for the rear passengers. The 6 Series Gran Turismo doesn’t offer a rear sunshade.

The CLS offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The 6 Series Gran Turismo doesn’t offer a house-current electrical outlet.

Model Availability

The CLS is available in both rear-wheel drive and all-wheel drive configurations. The 6 Series Gran Turismo doesn’t offer a two-wheel drive configuration.

Economic Advantages

The CLS will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the CLS will retain 38.73% to 45.11% of its original price after five years, while the 6 Series Gran Turismo only retains 34.38%.

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

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