Audi A6 / S6 Audi A6 / S6 2018 Mercedes-Benz M-Class Mercedes-Benz M-Class 2015

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

Lowest Total Price: $87,400

Audi A6 / S6 S6 4.0 TFSI   
Difference: $22,145

Lowest Total Invoice: $81,359

Audi A6 / S6 S6 4.0 TFSI   
Difference: $20,584

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182015
ModelA6 / S6M-Class
TrimS6 4.0 TFSIML63 AMG
Body4dr Sedan4dr SUV
Base Price $71,900 $98,400
Base Invoice $66,868 $91,512
Prestige Package 2,500  
Comfort Seating Package 1,850  
Driver Assistance Package 2,000 1,950
Cold Weather Package 500  
Metallic paint (extra cost) 575  
Wood trim, alternative type 1,250 1,600
Rear side airbags 350 420
Night vision 2,500 1,780
Synthetic suede headliner 3,000 1,920
Multicontour front seats   1,100
Convenience Package   580
Special order charge   250
Heated second row seats   620
Prestige Package 2,326  
Comfort Seating Package 1,722  
Driver Assistance Package 1,860 1,814
Cold Weather Package 467  
Metallic paint (extra cost) 536  
Wood trim, alternative type 1,164 1,488
Rear side airbags 325 391
Night vision 2,326 1,655
Synthetic suede headliner 2,790 1,786
Multicontour front seats   1,023
Convenience Package   539
Special order charge   233
Heated second row seats   577
Options (change) 14,525 10,220
Options (change) 13,516 9,506
Destination 975 925
Total Price $87,400 $109,545
Total Invoice $81,359 $101,943

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $20,265
TrueDelta Adjusted Invoice Difference: $18,834
Model Year20182015
ModelA6 / S6M-Class
TrimS6 4.0 TFSIML63 AMG
Body4dr Sedan4dr SUV
Engine450hp V8518hp V8
TransmissionS7T7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)16/24 MPG13/17 MPG
Audio (watts, speakers)630, 14830, 14
Tire (rear if not all the same)255/35-20265/45-20
Total Price$87,400$109,545
Adjustments for Features0-1,880
Feature-Adjusted Total Price$87,400$107,665
Total Invoice$81,359$101,943
Adjustments for Features0-1,750
Feature-Adjusted Total Invoice$81,359$100,193

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

Model Year20182015
ModelA6 / S6M-Class
TrimS6 4.0 TFSIML63 AMG
Body4dr Sedan4dr SUV
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
AWD$1700$1700
Accessories 
AC power outlet $100
Hands-free trunk or liftgate$100 
Heated / cooled cup holders, front row $75
Heated steering wheel$100 
Power liftgate $350
Power trunk closer$350 
Remote app $25
Remote window/roof operation $15
Semi-automated parking system $500
Sunshade, rear, power$225 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Automatic braking, high-speed or partial $200
Blind spot collision prevention $150
Collision preparation system, rear$100 
Driver drowsiness monitor $150
Hill descent control $250
Knee airbag, passenger$75 
Lane departure prevention $150
Lane departure prevention, steering-based$200 
Pedestrian detection, night$50 
Secondary collision brake assist$25 
Trailer sway control $25
Wide-view front camera$150 
Wide-view rear camera$0 
Cargo Management 
Aluminum roof rails $250
Cargo area partition net $40
Cargo cover $75
Cargo net$40 
Console with shifter$150 
Console without shifter $150
Climate Control 
Rear dual-zone climate control$125 
Rear wiper $175
Engine / Motor 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Body kit $0
Deep-tinted rear windows $275
Laminated front side windows$200 
Rear bumper protector $40
Rear spoiler $200
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
App support $0
Apple CarPlay support$100 
Handwriting recognition$200 
Navigation map updates, three years $0
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Voice control for external devices $0
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Chronometer $100
Head-up display (HUD)$350 
Headlight washers $50
Interior ambient lighting$150 
Interior ambient lighting, configurable $150
LED headlights$1000 
Steering-linked headlights $150
Xenon HID headlights $500
Seats and Interior Trim 
Leather-wrapped steering wheel$150 
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 steering wheel $150
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Active stabilizer bars $500
Adaptive dampers - electrical $500
Total Value of Features$7,665$9,545
Value of Feature Adjustments$0$1,880
Value of Feature Adjustments0-1,750

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

Model Year20182015
ModelA6 / S6M-Class
Body4dr Sedan4dr SUV
Wheelbase114.6 in114.8 in
Length194.2 in189.1 in
Width73.8 in75.2 in
Height57.8 in70.7 in
Curb Weight4,398 lb.5,238 lb.
Fuel Capacity19.8 gal.24.6 gal.
Row 1 Headroom37.2 in38.9 in
Row 1 Shoulder Room57.5 in58.5 in
Row 1 Legroom41.3 in40.3 in
Row 2 Headroom37.8 in38.5 in
Row 2 Shoulder Room56.3 in58.4 in
Row 2 Legroom37.4 in38.4 in
Cargo Volume,
Minimum
14.1 ft336.2 ft3
Cargo Volume,
Maximum
14.171.0 ft3

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Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Prestige Package
FeatureValueRequested?
Sunshades, second row125Yes
Sunshade, rear, power225No
Power trunk closer350Yes
Head-up display (HUD)350No
Around view cameras300Yes
Wide-view front camera150No
Hands-free trunk or liftgate100No
Wide-view rear camera0No
Total Requested77548%
Total Not Requested82552%
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 seat100Yes
Massage, passenger seat100Yes
Total Requested105084%
Total Not Requested20016%
Driver Assistance Package
FeatureValueRequested?
Auto-dimming headlights200Yes
Radar- or camera-based collision preparation system0Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200Yes
Forward collision warning200Yes
Lane departure prevention, steering-based200No
Total Requested150088%
Total Not Requested20012%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100No
Total Requested20067%
Total Not Requested10033%

Option Package Details
Mercedes-Benz M-Class ML63 AMG

Synthetic suede headliner
FeatureValueRequested?
Synthetic suede headliner650Yes
Dark-colored headliner (optional)0No
Total Requested650100%
Total Not Requested00%
Multicontour front seats
FeatureValueRequested?
Power thigh support adjuster, driver seat100Yes
Power seatback bolsters, driver seat100Yes
Power thigh support adjuster, passenger seat100Yes
Power seatback bolsters, passenger seat100Yes
Massage, driver seat100Yes
Massage, passenger seat100Yes
Total Requested600100%
Total Not Requested00%
Convenience Package
FeatureValueRequested?
Sunshades, second row125Yes
Rear seat pass-through100Yes
Total Requested225100%
Total Not Requested00%
Driver Assistance Package
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Lane departure prevention system150Yes
Automatic braking, low-speed200Yes
Automatic braking, high-speed200No
Blind spot intervention150No
Total Requested105075%
Total Not Requested35025%

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