Audi A6 / S6 Audi A6 / S6 2008 Mercedes-Benz GLS Mercedes-Benz GLS 2018

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Audi A6 / S6 vs. Mercedes-Benz GLS 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 GLS Invoice Comparison

Lowest Total Price: $64,215

Audi A6 / S6 A6 3.2 Avant   
Difference: $62,460

Lowest Total Invoice: $59,692

Audi A6 / S6 A6 3.2 Avant   
Difference: $58,185

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082018
ModelA6 / S6GLS
TrimA6 3.2 AvantAMG GLS63
Body4dr Wagon4dr SUV
Base Price $49,000 $125,300
Base Invoice $45,570 $116,529
Technology Package 4,100  
Premium Package 2,550  
S Line Package 2,000  
Sport suspension (upgrade) 500  
Cold Weather Package 600  
Adaptive cruise control 2,000  
Sunshades, second row 250 380
Rear side airbags 350  
Laminated front side windows 900  
iPod integration 290  
Lane departure warning 900  
Technology Package 3,813  
Premium Package 2,372  
S Line Package 1,820  
Sport suspension (upgrade) 466  
Cold Weather Package 557  
Adaptive cruise control 1,860  
Sunshades, second row 233 353
Rear side airbags 325  
Laminated front side windows 838  
iPod integration 225  
Lane departure warning 838  
Options (change) 14,440 380
Options (change) 13,347 353
Destination 775 995
Total Price $64,215 $126,675
Total Invoice $59,692 $117,877

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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 GLS

Lowest Adjusted Price and Invoice: Audi A6 / S6 A6 3.2 Avant
TrueDelta Adjusted Price Difference: $49,245
TrueDelta Adjusted Invoice Difference: $45,888
Model Year20082018
ModelA6 / S6GLS
TrimA6 3.2 AvantAMG GLS63
Body4dr Wagon4dr SUV
Engine255hp V6550hp V8
TransmissionT6T7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)14/19 MPG13/17 MPG
Audio (watts, speakers)270, 13830, 14
Tire (rear if not all the same)245/40-18295/40-21
Total Price$64,215$126,675
Adjustments for Features0-13,215
Feature-Adjusted Total Price$64,215$113,460
Total Invoice$59,692$117,877
Adjustments for Features0-12,297
Feature-Adjusted Total Invoice$59,692$105,580

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

Model Year20082018
ModelA6 / S6GLS
TrimA6 3.2 AvantAMG GLS63
Body4dr Wagon4dr SUV
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed manually-shiftable automatic $1200
AWD$1700$1700
Accessories 
AC power outlet $100
Adaptive cruise control$600 
Adaptive cruise control, all-speed $850
Heated / cooled cup holders, front row $75
Heated steering wheel$100 
Power door closers $300
Power flip-out rear side windows $125
Remote app $25
Remote climate control $25
Remote start via app $75
Remote window/roof operation $15
Semi-automated parking system $500
Brakes, Airbags, and Other Safety 
Around view cameras $500
Automatic braking, high-speed or partial $200
Automatic braking, low-speed $200
Blind spot collision prevention $150
Blind spot warning system $200
Driver drowsiness monitor $150
Forward collision warning $200
Full-size spare tire$225 
Hill descent control $250
Knee airbag, driver $75
Lane departure prevention $150
Obstacle detection, front $150
Radar- or camera-based collision preparation system $0
Rearview camera$200 
Rollover sensor $50
Side curtain airbags$350 
Side curtain airbags, three rows $500
Temporary spare tire $150
Trailer sway control $25
Cargo Management 
Aluminum roof rails $250
Cargo area partition net$40 
Cargo area rails w/tie downs$50 
Cargo mat$40 
Console with shifter$150 
Console without shifter $150
Rear seat pass-through$100 
Roof rails$250 
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Rear air vents$100 
Rear air vents with automatic controls $250
Rear HVAC unit $400
Rear wiper $175
Residual heat$50 
Engine / Motor 
Automatic start / stop $150
Exterior 
Bodyside moldings$75 
Deep-tinted rear windows $275
Glass roof panel(s) $300
Panoramic sunroof $1200
Rear bumper protector $40
Rear spoiler $200
Running boards $350
Sunroof$900 
Wheel-lip moldings $75
Infotainment 
Android Auto support $100
App support $0
Apple CarPlay support $100
Bluetooth audio streaming $25
CD changer, remote$200 
CD player $125
DVD-compatible player $0
HD radio $50
In-vehicle Internet $150
iPod integration$100 
Media drive $15
Navigation map updates, three years $0
SD Card slot $25
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
USB port $25
Wi-Fi hotspot $50
Instruments, Lights, and Mirrors 
Adaptive headlights $200
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Fog lights$125 
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 
Cooled or ventilated front seats $300
Door sill trim plates$100 
Illuminated door sill trim plates $200
Leather seating surfaces, third-row seats $200
Manual recliner, second row seats $75
Manual thigh support length adjuster, driver seat$50 
Massage, driver seat $100
Massage, passenger seat $100
Memory system, passenger seat $150
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power release, second row seats $50
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Power thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Power-folding third row seats $1000
Synthetic suede headliner $650
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Active stabilizer bars $500
Adaptive dampers - electrical $500
Air suspension, auto-leveling and height adjustable $1000
Crosswind stabilization $50
Electronic systems calibration selector $200
Total Value of Features$7,630$20,845
Value of Feature Adjustments$0$13,215
Value of Feature Adjustments0-12,297

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

Model Year20082018
ModelA6 / S6GLS
Body4dr Wagon4dr SUV
Wheelbase111.9 in121.1 in
Length194.2 in202.0 in
Width73.1 in76.1 in
Height58.2 in72.8 in
Curb Weight4,641 lb.5,754 lb.
Fuel Capacity21.1 gal.26.4 gal.
Row 1 Headroom37.6 in41.2 in
Row 1 Shoulder Room57.1 in58.5 in
Row 1 Legroom41.3 in40.3 in
Row 2 Headroom38.0 in40.0 in
Row 2 Shoulder Room55.9 in58.3 in
Row 2 Legroom36.9 in38.5 in
Row 3 Headroom0.0 in38.9 in
Row 3 Shoulder Room0.0 in50.5 in
Row 3 Legroom0.0 in35.0 in
Cargo Volume,
Minimum
33.9 ft316.0 ft3
Cargo Volume,
Behind R2
33.949.4 ft3
Cargo Volume,
Maximum
58.6 ft393.8 ft3

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Option Package Details
Audi A6 / S6 A6 3.2 Avant

Technology Package
FeatureValueRequested?
Navigation system600Yes
Tilt/telescoping steering wheel, power100Yes
Universal garage door opener100Yes
Steering-linked headlights150Yes
Obstacle detection, rear250Yes
Rearview camera200Yes
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested1750100%
Total Not Requested00%
Premium Package
FeatureValueRequested?
Power liftgate350Yes
Bose, 270W, 13 speakers (with subwoofer)350No
Auto-dimming rearview mirror150Yes
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Auto-dimming driver-side mirror75Yes
Compass0Yes
Surround sound250Yes
Storage compartment under front seat(s)50No
Power-folding mirrors50Yes
Auto-dimming passenger-side mirror75No
Total Requested157577%
Total Not Requested47523%
S Line Package
FeatureValueRequested?
Upgraded leather upholstery0No
Leather upholstery, extended coverage0No
Manual thigh support adjuster, driver seat50Yes
Front sport buckets100Yes
Special interior trim0No
Steering-wheel-mounted transmission controls100Yes
Upholstered door panels, leather250Yes
Total Requested500100%
Total Not Requested00%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100No
Heated steering wheel100No
Ski sack50No
Total Requested20044%
Total Not Requested25056%

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