Audi A6 / S6 Audi A6 / S6 2018 Mercedes-Benz GLS Mercedes-Benz GLS 2017

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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: $84,900

Audi A6 / S6 S6 4.0 TFSI   
Difference: $40,665

Lowest Total Invoice: $79,033

Audi A6 / S6 S6 4.0 TFSI   
Difference: $37,807

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182017
ModelA6 / S6GLS
TrimS6 4.0 TFSIAMG GLS63
Body4dr Sedan4dr SUV
Base Price $71,900 $124,100
Base Invoice $66,868 $115,413
Cold Weather Package 500  
Driver Assistance Package 2,000  
Comfort Seating Package 1,850  
Prestige Package 2,500  
Metallic paint (extra cost) 575  
Synthetic suede headliner 3,000  
Rear side airbags 350  
Wood trim, alternative type 1,250 160
Sunshades, second row   380
Cold Weather Package 467  
Driver Assistance Package 1,860  
Comfort Seating Package 1,722  
Prestige Package 2,326  
Metallic paint (extra cost) 536  
Synthetic suede headliner 2,790  
Rear side airbags 325  
Wood trim, alternative type 1,164 149
Sunshades, second row   353
Options (change) 12,025 540
Options (change) 11,190 502
Destination 975 925
Total Price $84,900 $125,565
Total Invoice $79,033 $116,840

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

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $34,535
TrueDelta Adjusted Invoice Difference: $32,103
Model Year20182017
ModelA6 / S6GLS
TrimS6 4.0 TFSIAMG GLS63
Body4dr Sedan4dr SUV
Engine450hp V8550hp V8
EPA Fuel Economy (city/highway)16/24 MPG13/17 MPG
Audio (watts, speakers)630, 14830, 14
Tire (rear if not all the same)255/35-20295/40-21
Total Price$84,900$125,565
Adjustments for Features0-6,130
Feature-Adjusted Total Price$84,900$119,435
Total Invoice$79,033$116,840
Adjustments for Features0-5,704
Feature-Adjusted Total Invoice$79,033$111,136

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

Model Year20182017
ModelA6 / S6GLS
TrimS6 4.0 TFSIAMG GLS63
Body4dr Sedan4dr SUV
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
AC power outlet $100
Hands-free trunk or liftgate$100 
Heated / cooled cup holders, front row $75
Heated steering wheel$100 
Power door closers $300
Power flip-out rear side windows $125
Power liftgate $350
Power trunk closer$350 
Remote app $25
Remote climate control $25
Remote start via app $75
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$100 
Lane departure prevention $150
Lane departure prevention, steering-based$200 
Secondary collision brake assist$25 
Side curtain airbags$350 
Side curtain airbags, three rows $500
Trailer sway control $25
Wide-view front camera$150 
Wide-view rear camera$0 
Cargo Management 
Aluminum roof rails $250
Cargo cover $75
Console with shifter$150 
Console without shifter $150
Rear seat pass-through$100 
Climate Control and Infotainment 
4G LTE connectivity$50 
App support $100
Aux input$50 
Handwriting recognition$200 
Navigation map updates, three years $0
Rear dual-zone climate control$125 
Rear HVAC unit $400
Rear wiper $175
Residual heat$50 
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $325
Deep-tinted rear windows $275
Glass roof panel(s) $300
Panoramic sunroof $1200
Rear bumper protector $40
Rear spoiler $200
Running boards $350
Wheel-lip moldings $75
Instruments, Lights, and Mirrors 
Adaptive headlights $200
Analog clock $25
Auto-dimming passenger-side mirror$75 
Head-up display (HUD)$350 
Interior ambient lighting$150 
Interior ambient lighting, configurable $150
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Seats and Interior Trim 
Leather seating surfaces, third-row seats $200
Manual recliner, second row seats $75
Metal pedals$75 
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power release, second row seats $50
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Power-folding third row seats $1000
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Active stabilizer bars $500
Adaptive dampers - electrical $500
Crosswind stabilization $50
Total Value of Features$7,575$13,705
Value of Feature Adjustments$0$6,130
Value of Feature Adjustments0-5,704

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

Model Year20182017
ModelA6 / S6GLS
Body4dr Sedan4dr SUV
Wheelbase114.6 in121.1 in
Length194.2 in202.0 in
Width73.8 in76.1 in
Height57.8 in72.8 in
Curb Weight4,398 lb.5,754 lb.
Fuel Capacity19.8 gal.26.4 gal.
Row 1 Headroom37.2 in41.2 in
Row 1 Shoulder Room57.5 in58.5 in
Row 1 Legroom41.3 in40.3 in
Row 2 Headroom37.8 in40.0 in
Row 2 Shoulder Room56.3 in58.3 in
Row 2 Legroom37.4 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,
14.1 ft316.0 ft3
Cargo Volume,
Behind R2
14.149.4 ft3
Cargo Volume,
14.193.8 ft3

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Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Cold Weather Package
Heated second row seats200Yes
Heated steering wheel100No
Total Requested20067%
Total Not Requested10033%
Driver Assistance Package
Auto-dimming headlights200Yes
Radar- or camera-based collision preparation system100Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed750Yes
Automatic braking, low-speed200Yes
Forward collision warning200Yes
Lane departure prevention, steering-based200No
Total Requested165089%
Total Not Requested20011%
Comfort Seating Package
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%
Prestige Package
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%

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