Audi A6 / S6 Audi A6 / S6 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2008
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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: $70,050

Mercedes-Benz SLK SLK55 AMG   
Difference: $4,665

Lowest Total Invoice: $65,297

Mercedes-Benz SLK SLK55 AMG   
Difference: $4,288

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082008
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $72,350 $63,200
Base Invoice $67,285 $58,776
iPod integration 290 375
Lighting Package   1,010
Premium II Package   1,410
Metallic paint (extra cost)   710
CD changer, remote   450
Automatic climate control, front   720
iPod integration 225 349
Lighting Package   939
Premium II Package   1,311
Metallic paint (extra cost)   659
CD changer, remote   418
Automatic climate control, front   670
Options (change) 290 4,675
Options (change) 225 4,346
Destination 775 875
Gas Tax 1,300 1,300
Total Price $74,715 $70,050
Total Invoice $69,585 $65,297

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Audi A6 / S6 dealer quotes or Mercedes-Benz SLK 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 SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $7,295
TrueDelta Adjusted Invoice Difference: $6,740
Model Year20082008
ModelA6 / S6SLK
TrimS6SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine435hp V10355hp V8
TransmissionT6T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/19 MPG14/20 MPG
Audio (watts, speakers)330, 13380, 11
Tire (rear if not all the same)265/35-19225/40-18
Total Price$74,715$70,050
Adjustments for Features0-2,630
Feature-Adjusted Total Price$74,715$67,420
Total Invoice$69,585$65,297
Adjustments for Features0-2,452
Feature-Adjusted Total Invoice$69,585$62,845

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

Model Year20082008
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 
Remote window/roof operation $15
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
Side curtain airbags$350 
Temporary spare tire $150
Cargo Management 
Cargo mat$40 
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 
Aux input $50
CD player $125
MP3-compatible player$50 
Telematics service, such as OnStar $200
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Compass$0 
Cornering lights $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Power-folding mirrors$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 
Manual thigh support length adjuster, driver seat$50 
Memory system, passenger seat $150
Metal pedals $75
No leather in second row $-300
Synthetic suede inserts in leather seating surfaces $0
Wood trim$300 
Total Value of Features$6,430$9,060
Value of Feature Adjustments$0$2,630
Value of Feature Adjustments0-2,452

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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 Year20082008
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.9 in95.7 in
Length193.5 in160.7 in
Width73.1 in70.4 in
Height57.5 in51.0 in
Curb Weight4,486 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 lights50No
Total Requested55092%
Total Not Requested508%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested35047%
Total Not Requested40053%

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