Audi A6 / S6 Audi A6 / S6 2007 Mercedes-Benz SLK Mercedes-Benz SLK 2015

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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: $77,975

Mercedes-Benz SLK SLK55 AMG   
Difference: $345

Lowest Total Invoice: $72,081

Audi A6 / S6 S6   
Difference: $502

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072015
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $72,000 $70,900
Base Invoice $66,148 $65,937
Technology Package 3,900  
Carbon fiber trim 400 2,250
Becker Map Pilot   800
Automatic climate control, front   760
Metallic paint (extra cost)   720
Proximity key   650
Obstacle detection, rear   970
Technology Package 3,549  
Carbon fiber trim 364 2,093
Becker Map Pilot   744
Automatic climate control, front   707
Metallic paint (extra cost)   670
Proximity key   605
Obstacle detection, rear   902
Options (change) 4,300 6,150
Options (change) 3,913 5,721
Destination 720 925
Gas Tax 1,300 0
Total Price $78,320 $77,975
Total Invoice $72,081 $72,583

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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: $5,865
TrueDelta Adjusted Invoice Difference: $4,636
Model Year20072015
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine435hp V10415hp V8
TransmissionT6T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)15/21 MPG19/28 MPG
Audio (watts, speakers)330, 13500, 11
Tire (rear if not all the same)265/35-19235/40-18
Total Price$78,320$77,975
Adjustments for Features0-5,520
Feature-Adjusted Total Price$78,320$72,455
Total Invoice$72,081$72,583
Adjustments for Features0-5,138
Feature-Adjusted Total Invoice$72,081$67,445

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

Model Year20072015
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 
Parking guidance system - passive $250
Power rear side windows$200 
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Driver drowsiness monitor $150
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, front $150
Rearview camera$200 
Roll bar $200
Torque vectoring, brake-based $100
Cargo Management 
Cargo net$40 
Rear seat pass-through$100 
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Rear air vents$100 
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable $500
Exterior 
Body kit $0
Bodyside cladding$350 
Glass roof panel(s) $300
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
Aux input $50
Bluetooth audio streaming $25
CD changer, remote$200 
CD player $125
HD radio $50
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Traffic information $25
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Fog lights$125 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Center armrest(s), second row$50 
Folding second row seats$300 
Manual thigh support length adjuster, driver seat$50 
Memory system, passenger seat $150
Neck-level heating, front seats $150
Synthetic suede inserts in leather seating surfaces $0
Total Value of Features$5,690$11,210
Value of Feature Adjustments$0$5,520
Value of Feature Adjustments0-5,138

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

Model Year20072015
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.9 in95.7 in
Length193.5 in162.8 in
Width73.1 in71.5 in
Height57.5 in51.2 in
Curb Weight4,486 lb.3,583 lb.
Fuel Capacity21.1 gal.15.9 gal.
Row 1 Headroom38.7 in38.0 in
Row 1 Shoulder Room57.1 in52.2 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 ft36.4 ft3
Cargo Volume,
Maximum
15.910.1 ft3

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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 SLK SLK55 AMG

Automatic climate control, front
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Total Requested325100%
Total Not Requested00%
Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Parking guidance system - passive250No
Total Requested25038%
Total Not Requested40062%
Becker Map Pilot
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100Yes
Traffic information25No
Total Requested70097%
Total Not Requested253%

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