Audi A6 / S6 Audi A6 / S6 2008 Mercedes-Benz SL Mercedes-Benz SL 2012
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Audi A6 / S6 vs. Mercedes-Benz SL 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 SL Invoice Comparison

Lowest Total Price: $80,065

Audi A6 / S6 S6   
Difference: $67,330

Lowest Total Invoice: $74,560

Audi A6 / S6 S6   
Difference: $62,760

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082012
ModelA6 / S6SL
TrimS6SL63 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $72,350 $140,440
Base Invoice $67,285 $130,609
Technology Package 3,350  
iPod integration 290  
Adaptive cruise control 2,000 2,300
Obstacle detection, rear   1,180
Wood trim   0
Technology Package 3,115  
iPod integration 225  
Adaptive cruise control 1,860 2,139
Obstacle detection, rear   1,097
Wood trim   0
Options (change) 5,640 3,480
Options (change) 5,200 3,236
Destination 775 875
Gas Tax 1,300 2,600
Total Price $80,065 $147,395
Total Invoice $74,560 $137,320

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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 SL 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: Audi A6 / S6 vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6
TrueDelta Adjusted Price Difference: $56,480
TrueDelta Adjusted Invoice Difference: $52,652
Model Year20082012
ModelA6 / S6SL
TrimS6SL63 AMG
Body4dr Sedan2dr Hardtop conv.
Engine435hp V10518hp V8
TransmissionT6T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/19 MPG12/19 MPG
Audio (watts, speakers)330, 13510, 10
Tire (rear if not all the same)265/35-19255/35-19
Total Price$80,065$147,395
Adjustments for Features0-10,850
Feature-Adjusted Total Price$80,065$136,545
Total Invoice$74,560$137,320
Adjustments for Features0-10,108
Feature-Adjusted Total Invoice$74,560$127,212

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

Model Year20082012
ModelA6 / S6SL
TrimS6SL63 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
Accessories 
Power rear side windows$200 
Power trunk closer $350
Remote window/roof operation $15
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests $500
Full-size spare tire$225 
Knee airbag, driver $75
Obstacle detection, front $150
Rearview camera$200 
Side curtain airbags$350 
Temporary spare tire $150
Cargo Management 
Air-conditioned storage compartment $50
Cargo mat$40 
Cargo net$40 
Rear seat pass-through$100 
Ski sack$50 
Climate Control 
Rear air vents$100 
Wiper de-icer $25
Exterior 
Body kit $0
Bodyside cladding$350 
Power retractable hardtop $6750
Sunroof$900 
Infotainment 
Aux input $50
CD changer, in-dash $325
CD changer, remote$200 
DVD-compatible player $0
HD radio $50
Media drive $15
SD Card slot $25
Telematics service, such as OnStar $200
Traffic information $25
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
Compass$0 
Cornering lights $50
Power-folding mirrors$50 
Seats and Interior Trim 
Center armrest(s), second row$50 
Cooled or ventilated front seats $300
Folding second row seats$300 
Leather-wrapped steering wheel$150 
Manual thigh support length adjuster, driver seat$50 
Massage, driver seat $100
Massage, passenger seat $100
Memory system, passenger seat $150
Metal pedals $75
Neck-level heating, front seats $150
No leather in second row $-300
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $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
Synthetic suede headliner $650
Synthetic suede steering wheel $150
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Adaptive hydraulic struts, auto-leveling and ht. adjustable $4000
Transmission 
Launch control $100
Total Value of Features$6,230$17,080
Value of Feature Adjustments$0$10,850
Value of Feature Adjustments0-10,108

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See a complete comparison of Audi A6 / S6 vs. Mercedes-Benz SL features.

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

Model Year20082012
ModelA6 / S6SL
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.9 in100.8 in
Length193.5 in180.4 in
Width73.1 in71.5 in
Height57.5 in51.1 in
Curb Weight4,486 lb.4,274 lb.
Fuel Capacity21.1 gal.21.1 gal.
Row 1 Headroom38.7 in37.7 in
Row 1 Shoulder Room57.1 in54.0 in
Row 1 Hip Room0.0 in53.9 in
Row 1 Legroom41.3 in42.9 in
Row 2 Headroom37.8 in0.0 in
Row 2 Shoulder Room55.9 in0.0 in
Row 2 Legroom36.9 in0.0 in
Cargo Volume,
Minimum		15.9 ft37.2 ft3
Cargo Volume,
Maximum		15.910.2 ft3

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See a complete comparison of Audi A6 / S6 vs. Mercedes-Benz SL specs.

Option Package Details
Audi A6 / S6 S6

Technology Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Rearview camera200No
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested120086%
Total Not Requested20014%

Option Package Details
Mercedes-Benz SL SL63 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

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