Audi A6 / S6 Audi A6 / S6 2017 Mercedes-Benz C-Class Mercedes-Benz C-Class 2006

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

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

Lowest Total Price: $63,180

Mercedes-Benz C-Class C55   
Difference: $10,095

Lowest Total Invoice: $58,903

Mercedes-Benz C-Class C55   
Difference: $9,312

Calculate Payments

  Down Payment Interest Rate Term
Model Year20172006
ModelA6 / S6C-Class
TrimS6 4.0 TFSIC55
Body4dr Sedan4dr Sedan
Base Price $70,900 $54,450
Base Invoice $65,938 $50,639
Metallic paint (extra cost) 575 690
Rear side airbags 350  
Sunshade, rear, power 500  
Premium Package   925
Satellite radio   500
Bluetooth cell phone link   765
Xenon HID headlights   790
Navigation system   2,210
Wood trim   775
Metallic paint (extra cost) 536 642
Rear side airbags 325  
Sunshade, rear, power 466  
Premium Package   860
Satellite radio   465
Bluetooth cell phone link   711
Xenon HID headlights   735
Navigation system   2,055
Wood trim   721
Options (change) 1,425 6,655
Options (change) 1,327 6,189
Destination 950 775
Gas Tax 0 1,300
Total Price $73,275 $63,180
Total Invoice $68,215 $58,903

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

Dealer Price Quotes

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

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

Lowest Adjusted Price and Invoice: Mercedes-Benz C-Class C55
TrueDelta Adjusted Price Difference: $3,580
TrueDelta Adjusted Invoice Difference: $3,247
Model Year20172006
ModelA6 / S6C-Class
TrimS6 4.0 TFSIC55
Body4dr Sedan4dr Sedan
Engine450hp V8362hp V8
TransmissionS7T5
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)18/27 MPG17/22 MPG
Audio (watts, speakers)630, 14320, 12
Tire (rear if not all the same)255/40-19225/40-18
Total Price$73,275$63,180
Adjustments for Features-6,5150
Feature-Adjusted Total Price$66,760$63,180
Total Invoice$68,215$58,903
Adjustments for Features-6,0650
Feature-Adjusted Total Invoice$62,150$58,903

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

Model Year20172006
ModelA6 / S6C-Class
TrimS6 4.0 TFSIC55
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
7-speed automated manual$1200 
5-speed manually-shiftable automatic $1000
AWD$1700 
RWD $0
Accessories 
Proximity key$250 
Remote window/roof operation $15
Sunshades, second row$125 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Blind spot warning system$200 
Collision preparation system, rear$100 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Rearview camera$200 
Rollover sensor$50 
Secondary collision brake assist$25 
Tire-pressure monitor$75 
Cargo Management 
Cargo net$40 
Climate Control 
Rear air vents $100
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Residual heat$50 
Engine / Motor 
Automatic start / stop$150 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Body kit $0
Bodyside moldings $75
Laminated front side windows$200 
Rear spoiler $200
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, remote $200
DVD-compatible player$0 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
Telematics service, such as OnStar $200
Traffic + travel information$25 
Voice control for nav and audio$100 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Compass$0 
Fog lights $125
Headlight washers $50
Power-folding mirrors$50 
Seats and Interior Trim 
Aluminum trim $100
Manual lumbar 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 headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power tilt adjuster, passenger seat$100 
Power-folding headrests, second row seats $50
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade)$0 
Ultra-sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$8,980$2,465
Value of Feature Adjustments$6,515$0
Value of Feature Adjustments-6,0650

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

Model Year20172006
ModelA6 / S6C-Class
Body4dr Sedan4dr Sedan
Wheelbase114.6 in106.9 in
Length194.2 in178.4 in
Width73.8 in68.0 in
Height57.8 in55.6 in
Curb Weight4,398 lb.3,540 lb.
Fuel Capacity19.8 gal.16.4 gal.
Row 1 Headroom37.2 in38.9 in
Row 1 Shoulder Room57.5 in53.1 in
Row 1 Hip Room0.0 in51.9 in
Row 1 Legroom41.3 in41.7 in
Row 2 Headroom37.8 in37.3 in
Row 2 Shoulder Room56.3 in54.3 in
Row 2 Hip Room0.0 in54.5 in
Row 2 Legroom37.4 in33.0 in
Cargo Volume14.1 ft312.2 ft3

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Option Package Details
Mercedes-Benz C-Class C55

Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Premium Package
FeatureValueRequested?
CD changer, remote200No
Rain-sensing wipers175Yes
Sunshade, rear, power225Yes
Total Requested40067%
Total Not Requested20033%

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