Audi A6 / S6 Audi A6 / S6 2018 Mercedes-Benz SLS AMG Mercedes-Benz SLS AMG 2015

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Audi A6 / S6 vs. Mercedes-Benz SLS AMG 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 SLS AMG Invoice Comparison

Lowest Total Price: $76,950

Audi A6 / S6 S6 4.0 TFSI   
Difference: $152,155

Lowest Total Invoice: $71,636

Audi A6 / S6 S6 4.0 TFSI   
Difference: $141,643

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182015
ModelA6 / S6SLS AMG
TrimS6 4.0 TFSIGT Final Edition
Body4dr Sedan2dr Coupe
Base Price $71,900 $221,580
Base Invoice $66,868 $206,069
Metallic paint (extra cost) 575  
Synthetic suede headliner 3,000  
Carbon fiber trim 500  
Carbon fiber door sill trim plates   4,500
Metallic paint (extra cost) 536  
Synthetic suede headliner 2,790  
Carbon fiber trim 467  
Carbon fiber door sill trim plates   4,185
Options (change) 4,075 4,500
Options (change) 3,793 4,185
Destination 975 925
Gas Tax 0 2,100
Total Price $76,950 $229,105
Total Invoice $71,636 $213,279

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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 SLS AMG dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $156,240
TrueDelta Adjusted Invoice Difference: $145,446
Model Year20182015
ModelA6 / S6SLS AMG
TrimS6 4.0 TFSIGT Final Edition
Body4dr Sedan2dr Coupe
Engine450hp V8583hp V8
TransmissionS7T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)630, 14?, 6
Tire (rear if not all the same)255/35-20265/35-19
Total Price$76,950$229,105
Adjustments for Features-4,0850
Feature-Adjusted Total Price$72,865$229,105
Total Invoice$71,636$213,279
Adjustments for Features-3,8030
Feature-Adjusted Total Invoice$67,833$213,279

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

Model Year20182015
ModelA6 / S6SLS AMG
TrimS6 4.0 TFSIGT Final Edition
Body4dr Sedan2dr Coupe
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
Accessories 
Power rear side windows$200 
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Collision preparation system, rear$100 
Rollover sensor$50 
Secondary collision brake assist$25 
Temporary spare tire$150 
Cargo Management 
Rear seat pass-through$100 
Storage compartment under front seat(s) $50
Climate Control 
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Wiper de-icer $25
Drivetrain 
Limited-slip rear differential $300
Engine / Motor 
Automatic start / stop$150 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Bright-finished fuel door $100
Carbon fiber front splitter spoiler $300
Carbon fiber hood $0
Carbon fiber wing-type rear spoiler $400
Laminated front side windows$200 
Painted brake calipers (optional) $0
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
In-vehicle Internet$150 
iPod integration $100
Surround sound$250 
Telematics service, such as OnStar $200
Traffic + travel information$25 
Traffic information $25
USB port$25 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Compass$0 
Cornering lights $50
Headlight washers $50
LED headlights$1000 
Power-folding mirrors$50 
Xenon HID headlights $500
Seats and Interior Trim 
Carbon fiber door sill trim plates $200
Center armrest(s), second row$50 
Folding second row seats$300 
Illuminated door sill trim plates$200 
Leather-wrapped steering wheel$150 
Memory system, passenger seat $150
No leather in second row $-300
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Synthetic suede inserts in leather seating surfaces $0
Synthetic suede steering wheel $150
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500
Air suspension, auto-leveling and height adjustable$1000 
Alloy wheels$350 
Electronic systems calibration selector$200 
Polished alloy wheels $350
Transmission 
Launch control $100
Total Value of Features$10,075$5,990
Value of Feature Adjustments$4,085$0
Value of Feature Adjustments-3,8030

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

Model Year20182015
ModelA6 / S6SLS AMG
Body4dr Sedan2dr Coupe
Wheelbase114.6 in105.5 in
Length194.2 in182.6 in
Width73.8 in76.3 in
Height57.8 in49.3 in
Curb Weight3,804 lb.3,727 lb.
Fuel Capacity19.8 gal.22.5 gal.
Row 1 Headroom37.2 in39.0 in
Row 1 Shoulder Room57.5 in58.4 in
Row 1 Hip Room0.0 in63.2 in
Row 1 Legroom41.3 in41.7 in
Row 2 Headroom37.8 in0.0 in
Row 2 Shoulder Room56.3 in0.0 in
Row 2 Legroom37.4 in0.0 in
Cargo Volume14.1 ft36.2 ft3

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