Audi A6 / S6 Audi A6 / S6 2010 Mercedes-Benz SLK Mercedes-Benz SLK 2009
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Audi A6 / S6 vs. Mercedes-Benz SLK 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 SLK Invoice Comparison

Lowest Total Price: $73,035

Mercedes-Benz SLK SLK55 AMG   
Difference: $5,190

Lowest Total Invoice: $68,054

Mercedes-Benz SLK SLK55 AMG   
Difference: $4,845

Calculate Payments

  Down Payment Interest Rate Term
Model Year20102009
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $76,100 $65,700
Base Invoice $70,774 $61,101
Lighting Package   1,030
Multimedia Package   2,980
Metallic paint (extra cost)   720
Automatic climate control, front   730
Lighting Package   958
Multimedia Package   2,771
Metallic paint (extra cost)   670
Automatic climate control, front   679
Options (change) 0 5,460
Options (change) 0 5,078
Destination 825 875
Gas Tax 1,300 1,000
Total Price $78,225 $73,035
Total Invoice $72,899 $68,054

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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 SLK dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $6,760
TrueDelta Adjusted Invoice Difference: $6,308
Model Year20102009
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine435hp V10355hp V8
TransmissionT6T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/19 MPG14/22 MPG
Audio (watts, speakers)255, 9380, 11
Tire (rear if not all the same)265/35-19225/40-18
Total Price$78,225$73,035
Adjustments for Features0-1,570
Feature-Adjusted Total Price$78,225$71,465
Total Invoice$72,899$68,054
Adjustments for Features0-1,463
Feature-Adjusted Total Invoice$72,899$66,591

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

Model Year20102009
ModelA6 / S6SLK
TrimS6SLK55 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 
Proximity key$250 
Remote window/roof operation $15
Sunshade, rear, power$225 
Sunshades, second row$125 
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Full-size spare tire$225 
Knee airbag, driver $75
Knee airbag, passenger $75
Rearview camera$200 
Side curtain airbags$350 
Temporary spare tire $150
Cargo Management 
Cargo net$40 
Rear seat pass-through$100 
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Automatic air recirculation$100 
Rear air vents$100 
Exterior 
Body kit $0
Bodyside cladding$350 
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
CD changer, in-dash $325
CD changer, remote$200 
SD Card slot $25
Telematics service, such as OnStar $200
Traffic information$25 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Compass$0 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Steering-linked headlights$150 
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Aluminum trim $100
Center armrest(s), second row$50 
Folding second row seats$300 
Heated second row seats$200 
Manual thigh support length adjuster, driver seat$50 
Memory system, passenger seat $150
Metal pedals $75
No leather in second row $-300
Power headrest height adjuster, driver seat$50 
Power headrest height adjuster, passenger seat$50 
Synthetic suede inserts in leather seating surfaces $0
Wood trim$300 
Total Value of Features$7,615$9,185
Value of Feature Adjustments$0$1,570
Value of Feature Adjustments0-1,463

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

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

Model Year20102009
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.9 in95.7 in
Length193.5 in160.7 in
Width73.0 in70.4 in
Height57.5 in51.0 in
Curb Weight4,519 lb.3,420 lb.
Fuel Capacity21.1 gal.18.5 gal.
Row 1 Headroom38.7 in37.9 in
Row 1 Shoulder Room57.1 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.5 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 ft36.5 ft3
Cargo Volume,
Maximum		15.99.8 ft3

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

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25No
Total Requested96572%
Total Not Requested37528%

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