2019 Mercedes C-Class Sedan vs. 2019 Genesis G80

Detailed Review, Specifications & Comparison

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Safety

The C-Class Sedan offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The G80 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.

Compared to metal, the C-Class Sedan’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Genesis G80 has a metal gas tank.

Both the C-Class Sedan and the G80 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, driver alert monitors, available all wheel drive, lane departure warning systems, blind spot warning systems and rear cross-path warning.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Mercedes C-Class Sedan is safer than the Genesis G80:

 

C-Class Sedan

G80

 

Driver

STARS

5 Stars

5 Stars

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Mercedes C-Class Sedan is safer than the Genesis G80:

 

C-Class Sedan

G80

 

Front Seat

STARS

5 Stars

4 Stars

HIC

76

81

Chest Movement

1 inches

1.3 inches

Abdominal Force

147 G’s

195 G’s

 

Into Pole

STARS

5 Stars

5 Stars

Hip Force

769 lbs.

857 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Reliability

To reliably start during all conditions and help handle large electrical loads, the C-Class Sedan has a standard 800-amp battery. The G80’s 740-amp battery isn’t as powerful.

Fuel Economy and Range

On the EPA test cycle the C-Class Sedan gets better fuel mileage than the G80:

 

 

C-Class

G80

 

2WD

300/Auto

23 city/34 hwy

18 city/26 hwy

3.8/Auto

 

 

n/a

17 city/25 hwy

3.3T/Auto Sport

 

 

n/a

16 city/24 hwy

5.0/Auto

AWD

300/Auto

22 city/33 hwy

18 city/24 hwy

3.8/Auto

 

 

 

17 city/24 hwy

3.3T/Auto

 

 

n/a

15 city/23 hwy

5.0/Auto

In heavy traffic or at stoplights the C-Class Sedan’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 G80 doesn’t offer an automatic engine start/stop system.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes C-Class Sedan higher (5 out of 10) than the Genesis G80 (3 to 5). This means the C-Class Sedan produces up to 16.5 pounds less smog-producing pollutants than the G80 every 15,000 miles.

Transmission

A nine-speed automatic is standard on the Mercedes C-Class Sedan, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the G80.

Brakes and Stopping

The C-Class Sedan’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the G80 3.8 are solid, not vented.

The C-Class Sedan stops much shorter than the G80:

 

C-Class

G80

 

70 to 0 MPH

160 feet

180 feet

Car and Driver

60 to 0 MPH

105 feet

116 feet

Motor Trend

Tires and Wheels

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the C-Class Sedan can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The G80 doesn’t offer run-flat tires.

Suspension and Handling

The C-Class Sedan’s 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 G80 doesn’t offer drift compensation steering.

The AMG C 43 Sedan handles at .93 G’s, while the G80 AWD pulls only .84 G’s of cornering force in a Car and Driver skidpad test.

The C 300 Sedan executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the G80 5.0 (25.7 seconds @ .71 average G’s vs. 26.7 seconds @ .7 average G’s).

Chassis

The Mercedes C-Class Sedan may be more efficient, handle and accelerate better because it weighs about 800 to 950 pounds less than the Genesis G80.

The C-Class Sedan is 12 inches shorter than the G80, making the C-Class Sedan easier to handle, maneuver and park in tight spaces.

The front grille of the C-Class Sedan uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The G80 doesn’t offer active grille shutters.

Cargo Capacity

The C-Class Sedan’s optional rear seats fold to accommodate long and bulky cargo. The G80 doesn’t offer folding rear seats, only a ski pass-through.

Ergonomics

Unlike the driver-only memory system in the G80, the C-Class Sedan offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The C-Class Sedan’s standard easy entry system raises the steering wheel, making it easier for the driver to get in and out. An easy entry system costs extra on the G80.

If the windows are left open on the C-Class Sedan the driver can close them all at the outside door handle or from a distance using the remote. On a hot day the driver can lower the windows from a distance using the keyless remote. The driver of the G80 can only operate the windows from inside the vehicle, with the ignition on.

Optional air conditioned seats in the C-Class Sedan keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The G80 only offers an air-conditioned driver’s seat.

The C-Class Sedan’s optional Active Parking Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The G80 doesn’t offer an automated parking system.

Model Availability

The Mercedes C-Class comes in coupe, convertible and sedan bodystyles; the Genesis G80 isn’t available as a coupe or convertible.

Recommendations

The C-Class Sedan was chosen as one of Automobile Magazine’s “All Stars” in 2015. The G80 has never been an “All Star.”

The Mercedes C-Class outsold the Genesis G80 by over five to one during the 2018 model year.

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

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