Certified Benz & Beemer Compares 2017 Mercedes Benz C-Class VS 2017 Chevrolet Impala Near Scottsdale, AZ

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2017 Mercedes Benz C-Class

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VS

2017 Chevrolet Impala

Safety Comparison

For enhanced safety, the front and rear seat shoulder belts of the Mercedes C-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Chevrolet Impala doesn’t offer pretensioners for the rear seat belts.

The C-Class Sedan’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Impala doesn’t offer pre-crash pretensioners.

The C-Class Sedan offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Impala doesn’t offer all-wheel drive.

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 Impala only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.

The C-Class Sedan’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 Impala doesn’t offer a driver alert monitor.

Both the C-Class Sedan and the Impala have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height-adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, available lane departure warning systems and blind spot warning systems.

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 Chevrolet Impala:

 

C-Class Sedan

Impala

 

Front Seat

STARS

5 Stars

4 Stars

Chest Movement

1 inches

1.3 inches

Abdominal Force

147 G’s

180 G’s

 

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

12 inches

13 inches

HIC

248

315

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

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the C-Class Sedan the rating of “Top Pick” for 2017, a rating granted to only 107 vehicles tested by the IIHS. The Impala has not been fully tested, yet.

Warranty Comparison

The C-Class Sedan comes with a full 4-year/50,000 mile basic warranty, which covers the entire car and includes 24 hour roadside assistance. The Impala’s 3-year/36,000 mile basic warranty expires 1 year and 14,000 miles sooner.

The C-Class Sedan’s corrosion warranty is unlimited miles longer than the Impala’s (unlimited vs. 100,000 miles).

Engine Comparison

The C300 Sedan’s standard 2.0 turbo 4 cyl. produces 44 more horsepower (241 vs. 197) and 82 lbs.-ft. more torque (273 vs. 191) than the Impala’s standard 2.5 DOHC 4 cyl. The C300 Sedan’s 2.0 turbo 4 cyl. produces 9 lbs.-ft. more torque (273 vs. 264) than the Impala’s optional 3.6 DOHC V6. The AMG C43 Sedan’s standard 3.0 turbo V6 produces 57 more horsepower (362 vs. 305) and 120 lbs.-ft. more torque (384 vs. 264) than the Impala’s optional 3.6 DOHC V6.

As tested in Car and Driver the AMG C43 Sedan 3.0 turbo V6 is faster than the Chevrolet Impala V6:

 

C-Class Sedan

Impala

Zero to 30 MPH

1.8 sec

2.4 sec

Zero to 60 MPH

4.5 sec

6 sec

Zero to 100 MPH

11.2 sec

15.5 sec

5 to 60 MPH Rolling Start

5.4 sec

6.2 sec

Passing 30 to 50 MPH

3 sec

3.4 sec

Passing 50 to 70 MPH

3.7 sec

4 sec

Quarter Mile

13.1 sec

14.8 sec

Speed in 1/4 Mile

108 MPH

97 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the C300 Sedan RWD gets better fuel mileage than the Impala Flex-Fuel V6 (24 city/34 hwy vs. 19 city/28 hwy).

Regardless of its engine, the C-Class Sedan’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Chevrolet only offers an automatic engine start/stop system on the Impala 4 cyl.

Brakes and Stopping Comparison

For better stopping power the C-Class Sedan’s front brake rotors are larger than those on the Impala:

 

C-Class Sedan

AMG C43 Sedan

Impala

Front Rotors

13 inches

14.2 inches

12.6 inches

Rear Rotors

11.8 inches

12.6 inches

12.4 inches

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 on the Impala are solid, not vented.

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

 

C-Class Sedan

Impala

 

70 to 0 MPH

160 feet

178 feet

Car and Driver

60 to 0 MPH

108 feet

119 feet

Motor Trend

Tires and Wheels Comparison

The C-Class Sedan’s optional 245/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the Impala Premier’s optional 40 series tires.

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 Impala doesn’t offer run-flat tires.

Suspension and Handling Comparison

The C-Class Sedan offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The Impala’s suspension doesn’t offer adjustable shock absorbers.

The C-Class Sedan has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The C-Class Sedan’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The Impala doesn’t offer a load leveling suspension.

The C-Class Sedan’s front to rear weight distribution is more even (55% to 45%) than the Impala’s (59.5% to 40.5%). This gives the C-Class Sedan more stable handling and braking.

The AMG C43 Sedan 4MATIC handles at .93 G’s, while the Impala LT pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

The C300 Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver quicker than the Impala Premier (26.3 seconds @ .7 average G’s vs. 27.1 seconds @ .68 average G’s).

For better maneuverability, the C-Class Sedan’s turning circle is 2 feet tighter than the Impala’s (36.8 feet vs. 38.8 feet). The AMG C43 Sedan’s turning circle is .4 feet tighter than the Impala’s (38.4 feet vs. 38.8 feet).

Chassis Comparison

The Mercedes C-Class Sedan may be more efficient, handle and accelerate better because it weighs about 50 to 300 pounds less than the Chevrolet Impala.

The C-Class Sedan is 1 foot, 4.8 inches shorter than the Impala, 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 Impala doesn’t offer active grille shutters.

Cargo Capacity Comparison

With its sedan body style, valet key, locking rear seatbacks and remote trunk release lockout, the C-Class offers cargo security. The Impala’s non-lockable folding seat and non-lockable remote release defeat cargo security.

To make loading and unloading groceries and cargo easier when your hands are full, the C-Class Sedan’s trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The C-Class Sedan also offers an optional power trunk, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper. The Impala doesn’t offer a power or hands-free opening trunk.

Ergonomics Comparison

Unlike the driver-only memory system optional at extra cost in the Impala Premier, 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 and glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the Impala, and is not available on all models.

The C-Class Sedan offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Impala doesn’t offer a heads-up display.

The C-Class Sedan’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Impala’s passenger windows don’t close automatically.

If the windows are left down on the C-Class Sedan the driver can raise them all using the key in the outside lock cylinder or the keyless remote; on a hot day the driver can lower the windows. The driver of the Impala can only operate the windows from inside the vehicle, with the ignition on.

The C-Class Sedan has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent vandalism, such as sugar in the tank and fuel theft. The Impala doesn’t offer a locking fuel door.

The C-Class Sedan’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Impala’s manually variable intermittent wipers have to be constantly adjusted.

While driving with high beams on, sensitive light sensors available for the C-Class Sedan detect other vehicles which could be blinded and automatically switch to low beams. The Impala doesn’t offer automatic dimming high beams.

To help drivers see further while navigating curves, the C-Class Sedan offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Impala doesn’t offer cornering lights.

A power rear sunshade is optional in the C-Class Sedan to help block heat and glare for the rear passengers. The Impala doesn’t offer a rear sunshade.

The C-Class Sedan’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. Chevrolet only offers heated mirrors on the Impala LT/Premier.

When the C-Class Sedan is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Impala’s mirror doesn’t automatically adjust for backing.

The C-Class Sedan has a standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. Dual zone air conditioning is only available on the Impala LT/Premier.

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 Impala doesn’t offer an automated parking system.

Economic Advantages Comparison

According to The Car Book by Jack Gillis, the C-Class Sedan is less expensive to operate than the Impala because typical repairs cost less on the C-Class Sedan than the Impala, including $80 less for front brake pads and $135 less for a timing belt/chain.

Recommendations Comparison

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

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