Certified Benz & Beemer Compares 2010 Mercedes Benz C-Class VS 2010 Audi A6 Near Scottsdale, AZ

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2010 Mercedes Benz C-Class

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VS

2010 Audi A6

Safety Comparison

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For enhanced safety, the front and rear seat shoulder belts of the Mercedes C Class are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Audi A6 has only front height-adjustable seat belts.

The C Class offers optional Tele Aid, which uses a global positioning satellite (GPS) receiver and a cellular system to get driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The A6 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies.

Both the C Class and the A6 have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four wheel antilock brakes, traction control, electronic stability systems to prevent skidding and available all wheel drive.

The Insurance Institute for Highway Safety rates the general design of front seat head restraints for their ability to protect front seat occupants from whiplash injuries. The IIHS also performs a dynamic test on those seats with “good” or “acceptable” geometry. In these ratings, the C Class is safer then the A6:

C Class

A6

Overall Evaluation

GOOD

ACCEPTABLE

Head Restraint Design

GOOD

GOOD

Distance from Back of Head

41 mm

62 mm

Distance Below Top of Head

38 mm

55 mm

Dynamic Test Rating

GOOD

ACCEPTABLE

Seat Design

Pass

Pass

Torso Acceleration

11.7 g’s

13.4 g’s

Neck Force Rating

Low

Medium

Max Neck Shearing Force

34

172

Max Neck Tension

453

726

(Lower numerical results are better in all tests.)

Warranty Comparison

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There are over 18 percent more Mercedes dealers than there are Audi dealers, which makes it easier to get service under the C Class’ warranty.

Reliability Comparison

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J.D. Power and Associates’ 2009 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 6th in initial quality. With 17 more problems per 100 vehicles, Audi is ranked 20th.

Engine Comparison

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As tested in Consumer Reports the C300 is faster than the A6 3.2:

C Class

A6

Zero to 30 MPH

2.7 sec

2.8 sec

Zero to 60 MPH

6.8 sec

7.7 sec

45 to 65 MPH Passing

4.7 sec

5 sec

Quarter Mile

15.2 sec

16 sec

Speed in 1/4 Mile

94.7 MPH

91 MPH

Brakes and Stopping Comparison

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The C Class stops much shorter than the A6:

C Class

A6

70 to 0 MPH

170 feet

185 feet

Car and Driver

60 to 0 MPH

117 feet

129 feet

Motor Trend

60 to 0 MPH (Wet)

138 feet

144 feet

Consumer Reports

Suspension and Handling Comparison

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The C Class offers an optional 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 A6’s suspension doesn’t offer adjustable shock absorbers.

The C Class’ front to rear weight distribution is more even (52.5% to 47.5%) than the A6’s (54.2% to 45.8%). This gives the C Class more stable handling and braking.

The C350 handles at .87 G’s, while the A6 4.2 Sedan Quattro pulls only .82 G’s of cornering force in a Motor Trend skidpad test.

The C350 goes through Road & Track’s slalom 2.2 MPH faster than the A6 3.2 Sedan Quattro (63.8 vs. 61.6 MPH).

For better maneuverability, the C350’s turning circle is 3.5 feet tighter than the A6’s (35.5 feet vs. 39 feet). The C300’s turning circle is 3.4 feet tighter than the A6’s (35.6 feet vs. 39 feet).

Chassis Comparison

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The Mercedes C Class may be more efficient, handle and accelerate better because it weighs about 350 to 500 pounds less than the Audi A6.

The C Class is 11.2 inches shorter than the A6 Sedan, making the C Class easier to handle, maneuver and park in tight spaces.

As tested by Road & Track while at idle, the interior of the C350 is quieter than the A6 3.2 Sedan Quattro (45 vs. 46 dB).

Cargo Capacity Comparison

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A low lift-over trunk design makes loading and unloading the C Class easier. The C Class’ trunk lift-over height is 26.4 inches, while the A6 Sedan’s liftover is 28.2 inches.

Ergonomics Comparison

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If the windows are left down on the C Class the driver can raise them all using the keyless remote (remote must be aimed at door sensor); on a hot day the driver can lower the windows. The driver of the A6 can’t use the remote to operate the windows.

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