Mercedes-Benz M-Class Mercedes-Benz M-Class 2008 Audi A6 / S6 Audi A6 / S6 2018

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

Lowest Total Price: $76,340

Audi A6 / S6 S6 4.0 TFSI   
Difference: $15,605

Lowest Total Invoice: $71,071

Audi A6 / S6 S6 4.0 TFSI   
Difference: $14,499

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082018
ModelM-ClassA6 / S6
TrimML63 AMGS6 4.0 TFSI
Body4dr SUV4dr Sedan
Base Price $87,000 $71,900
Base Invoice $80,910 $66,868
Obstacle detection, rear 770  
Proximity key 1,110  
iPod integration 375  
Illuminated door sill trim plates 550  
Voice control for nav and audio 510  
Cargo mat 160 190
Heated second row seats 595  
Cold Weather Package   500
Comfort Seating Package   1,850
Metallic paint (extra cost)   575
Rear side airbags   350
Obstacle detection, rear 716  
Proximity key 1,032  
iPod integration 349  
Illuminated door sill trim plates 512  
Voice control for nav and audio 474  
Cargo mat 149 178
Heated second row seats 553  
Cold Weather Package   467
Comfort Seating Package   1,722
Metallic paint (extra cost)   536
Rear side airbags   325
Options (change) 4,070 3,465
Options (change) 3,785 3,228
Destination 875 975
Total Price $91,945 $76,340
Total Invoice $85,570 $71,071

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $15,790
TrueDelta Adjusted Invoice Difference: $14,671
Model Year20082018
ModelM-ClassA6 / S6
TrimML63 AMGS6 4.0 TFSI
Body4dr SUV4dr Sedan
Engine503hp V8450hp V8
TransmissionT7S7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)11/14 MPG16/24 MPG
Audio (watts, speakers)440, 12630, 14
Tire (rear if not all the same)295/40-20255/35-20
Total Price$91,945$76,340
Adjustments for Features0-185
Feature-Adjusted Total Price$91,945$76,155
Total Invoice$85,570$71,071
Adjustments for Features0-172
Feature-Adjusted Total Invoice$85,570$70,899

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

Model Year20082018
ModelM-ClassA6 / S6
TrimML63 AMGS6 4.0 TFSI
Body4dr SUV4dr Sedan
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
7-speed automated manual $1200
AWD$1700$1700
Accessories 
Heated steering wheel $100
Power liftgate$350 
Remote window/roof operation$15 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Blind spot warning system $200
Collision preparation system, rear $100
Hill descent control$250 
Knee airbag, driver $75
Knee airbag, passenger $75
Secondary collision brake assist $25
Trailer sway control$25 
Cargo Management 
Cargo area partition net$40 
Cargo area rails w/tie downs$50 
Cargo cover$75 
Cargo net $40
Console with shifter $150
Console without shifter$150 
Rear seat pass-through $100
Roof rails$250 
Climate Control 
Rear dual-zone climate control $125
Rear wiper$175 
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable $500
Regenerative braking $0
Exterior 
Bodyside moldings$75 
Deep-tinted rear windows$275 
Laminated front side windows $200
Rear bumper protector$40 
Running boards$350 
Wheel-lip moldings$75 
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
iPod integration$100 
Media drive $15
Rear seat audio controls$25 
SD Card slot $25
Telematics service, such as OnStar$200 
Traffic + travel information $25
USB port $25
Wi-Fi hotspot $50
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror $75
Chronometer$100 
Compass $0
Cornering lights$50 
Fog lights$125 
Headlight washers$50 
Interior ambient lighting $150
LED headlights $1000
Steering-linked headlights$150 
Xenon HID headlights$500 
Seats and Interior Trim 
Massage, driver seat $100
Massage, passenger seat $100
Power headrest height adjuster, driver seat$50 
Power headrest height adjuster, passenger seat$50 
Power thigh bolsters, driver seat $100
Power thigh bolsters, passenger seat $100
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Electronic systems calibration selector $200
Total Value of Features$7,195$7,380
Value of Feature Adjustments$0$185
Value of Feature Adjustments0-172

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

Model Year20082018
ModelM-ClassA6 / S6
Body4dr SUV4dr Sedan
Wheelbase114.7 in114.6 in
Length188.5 in194.2 in
Width75.2 in73.8 in
Height71.5 in57.8 in
Curb Weight5,093 lb.4,398 lb.
Fuel Capacity25.1 gal.19.8 gal.
Row 1 Headroom39.9 in37.2 in
Row 1 Shoulder Room59.9 in57.5 in
Row 1 Hip Room55.0 in0.0 in
Row 1 Legroom42.2 in41.3 in
Row 2 Headroom39.8 in37.8 in
Row 2 Shoulder Room59.8 in56.3 in
Row 2 Legroom40.0 in37.4 in
Cargo Volume,
Minimum
29.4 ft314.1 ft3
Cargo Volume,
Maximum
72.4 ft314.1 ft3

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Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100No
Total Requested20067%
Total Not Requested10033%
Comfort Seating Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Power thigh support length adjuster, driver seat100Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100Yes
Power thigh support length adjuster, passenger seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Memory system, passenger seat150Yes
Massage, driver seat100No
Massage, passenger seat100No
Total Requested85068%
Total Not Requested40032%

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