Mercedes-Benz C-Class Mercedes-Benz C-Class 2006 Audi A6 / S6 Audi A6 / S6 2010

We are 103,000+ car owners sharing real-world car information.

Join Us

Mercedes-Benz C-Class vs. Audi A6 / S6 Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Mercedes-Benz C-Class vs. Audi A6 / S6 Invoice Comparison

Lowest Total Price: $63,180

Mercedes-Benz C-Class C55   
Difference: $15,395

Lowest Total Invoice: $58,903

Mercedes-Benz C-Class C55   
Difference: $14,321

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062010
ModelC-ClassA6 / S6
TrimC55S6
Body4dr Sedan4dr Sedan
Base Price $54,450 $76,100
Base Invoice $50,639 $70,774
Premium Package 925  
Xenon HID headlights 790  
Metallic paint (extra cost) 690  
Satellite radio 500  
Bluetooth cell phone link 765  
Wood trim 775  
Navigation system 2,210  
Rear side airbags   350
Premium Package 860  
Xenon HID headlights 735  
Metallic paint (extra cost) 642  
Satellite radio 465  
Bluetooth cell phone link 711  
Wood trim 721  
Navigation system 2,055  
Rear side airbags   325
Options (change) 6,655 350
Options (change) 6,189 325
Destination 775 825
Gas Tax 1,300 1,300
Total Price $63,180 $78,575
Total Invoice $58,903 $73,224

Return to top

While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Mercedes-Benz C-Class dealer quotes or Audi A6 / S6 dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Mercedes-Benz C-Class vs. Audi A6 / S6

Lowest Adjusted Price and Invoice: Mercedes-Benz C-Class C55
TrueDelta Adjusted Price Difference: $12,105
TrueDelta Adjusted Invoice Difference: $11,255
Model Year20062010
ModelC-ClassA6 / S6
TrimC55S6
Body4dr Sedan4dr Sedan
Engine362hp V8435hp V10
TransmissionT5T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)17/22 MPG14/19 MPG
Audio (watts, speakers)320, 12255, 9
Tire (rear if not all the same)225/40-18265/35-19
Total Price$63,180$78,575
Adjustments for Features0-3,290
Feature-Adjusted Total Price$63,180$75,285
Total Invoice$58,903$73,224
Adjustments for Features0-3,066
Feature-Adjusted Total Invoice$58,903$70,158

Return to top

Features Comparison: Mercedes-Benz C-Class vs. Audi A6 / S6

Model Year20062010
ModelC-ClassA6 / S6
TrimC55S6
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
6-speed manually-shiftable automatic $1100
RWD$0 
AWD $1700
Accessories 
Proximity key $250
Remote window/roof operation$15 
Sunshades, second row $125
Brakes, Airbags, and Other Safety 
Rearview camera $200
Tire-pressure monitor $75
Cargo Management 
Cargo net $40
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Residual heat $50
Exterior 
Body kit$0 
Bodyside cladding $350
Bodyside moldings$75 
Rear spoiler$200 
Infotainment 
Aux input $50
CD player$125 
DVD-compatible player $0
iPod integration $100
Media drive $15
Telematics service, such as OnStar$200 
Traffic information $25
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror $75
Compass $0
Cornering lights $50
Steering-linked headlights $150
Seats and Interior Trim 
Aluminum trim$100 
Heated second row seats $200
Manual lumbar adjuster, driver seat$50 
Manual thigh support length adjuster, driver seat $50
Manual tilt adjuster, passenger seat$50 
Memory system, passenger seat$150 
Power 4-way lumbar adjuster, driver seat $150
Power 4-way lumbar adjuster, passenger seat $150
Power tilt adjuster, passenger seat $100
Power-folding headrests, second row seats$50 
Suspension, Wheels, and Tires 
Sport suspension (upgrade) $0
Ultra-sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$2,015$5,305
Value of Feature Adjustments$0$3,290
Value of Feature Adjustments0-3,066

Return to top

Specifications Comparison: Mercedes-Benz C-Class vs. Audi A6 / S6

Model Year20062010
ModelC-ClassA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase106.9 in111.9 in
Length178.4 in193.5 in
Width68.0 in73.0 in
Height55.6 in57.5 in
Curb Weight3,540 lb.4,519 lb.
Fuel Capacity16.4 gal.21.1 gal.
Row 1 Headroom38.9 in38.7 in
Row 1 Shoulder Room53.1 in57.1 in
Row 1 Hip Room51.9 in0.0 in
Row 1 Legroom41.7 in41.3 in
Row 2 Headroom37.3 in37.8 in
Row 2 Shoulder Room54.3 in55.9 in
Row 2 Hip Room54.5 in0.0 in
Row 2 Legroom33.0 in36.9 in
Cargo Volume12.2 ft315.9 ft3

Return to top

Option Package Details
Mercedes-Benz C-Class C55

Premium Package
FeatureValueRequested?
CD changer, remote200Yes
Rain-sensing wipers175Yes
Sunshade, rear, power225Yes
Total Requested600100%
Total Not Requested00%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans, Wagons, Coupes, and Convertibles.
See TrueDelta's information for all Mercedes-Benz models.