Audi A8 Audi A8 2012 Mercedes-Benz SLK Mercedes-Benz SLK 2008

We are 103,000+ car owners sharing real-world car information.

Join Us

Audi A8 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 A8 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $70,800

Mercedes-Benz SLK SLK55 AMG   
Difference: $9,575

Lowest Total Invoice: $65,995

Mercedes-Benz SLK SLK55 AMG   
Difference: $8,816

Calculate Payments

  Down Payment Interest Rate Term
Model Year20122008
ModelA8SLK
TrimA8SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $78,750 $63,200
Base Invoice $73,237 $58,776
Leather door panel trim 750  
Lighting Package   1,010
Premium II Package   1,410
Metallic paint (extra cost)   710
iPod integration   375
Automatic climate control, front   720
Navigation system   1,200
Leather door panel trim 699  
Lighting Package   939
Premium II Package   1,311
Metallic paint (extra cost)   659
iPod integration   349
Automatic climate control, front   670
Navigation system   1,116
Options (change) 750 5,425
Options (change) 699 5,044
Destination 875 875
Gas Tax 0 1,300
Total Price $80,375 $70,800
Total Invoice $74,811 $65,995

Return to top

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 A8 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 A8 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $9,005
TrueDelta Adjusted Invoice Difference: $8,285
Model Year20122008
ModelA8SLK
TrimA8SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine372hp V8355hp V8
TransmissionT8T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/21 MPG14/20 MPG
Audio (watts, speakers)630, 14380, 11
Tire (rear if not all the same)255/45-19225/40-18
Total Price$80,375$70,800
Adjustments for Features-5700
Feature-Adjusted Total Price$79,805$70,800
Total Invoice$74,811$65,995
Adjustments for Features-5310
Feature-Adjusted Total Invoice$74,280$65,995

Return to top

Features Comparison: Audi A8 vs. Mercedes-Benz SLK

Model Year20122008
ModelA8SLK
TrimA8SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
Accessories 
Power rear side windows$200 
Sunshade, rear, power$225 
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Brake- or yaw-sensor-initiated collision preparation system$0 
Full-size spare tire$225 
Rear side airbags$300 
Rollover sensor$50 
Side curtain airbags$350 
Temporary spare tire $150
Cargo Management 
Air-conditioned storage compartment$50 
Climate Control 
Automatic air recirculation$100 
Rear air vents$100 
Exterior 
Body kit $0
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
Bluetooth audio streaming$25 
DVD-compatible player$0 
Handwriting recognition$200 
HD radio$50 
iPod integration $100
Media drive$15 
MP3-compatible player$50 
SD Card slot$25 
Telematics service, such as OnStar $200
Traffic information$25 
USB port$25 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75 
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 
Metal pedals $75
No leather in second row $-300
Power headrest height adjuster, driver seat$50 
Power headrest height adjuster, passenger seat$50 
Power seat belt height adjusters, front row$25 
Power thigh support length adjuster, driver seat$100 
Power thigh support length adjuster, passenger seat$100 
Power upper seatback recliner, driver seat$100 
Power upper seatback recliner, passenger seat$100 
Synthetic suede inserts in leather seating surfaces $0
Upholstered instrument panel$300 
Wood trim$300 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$9,265$8,695
Value of Feature Adjustments$570$0
Value of Feature Adjustments-5310

Return to top

Specifications Comparison: Audi A8 vs. Mercedes-Benz SLK

Model Year20122008
ModelA8SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase117.8 in95.7 in
Length202.2 in160.7 in
Width76.7 in70.4 in
Height57.5 in51.0 in
Curb Weight4,729 lb.3,420 lb.
Fuel Capacity23.8 gal.18.5 gal.
Row 1 Headroom37.2 in37.9 in
Row 1 Shoulder Room59.1 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.4 in42.5 in
Row 2 Headroom38.1 in0.0 in
Row 2 Shoulder Room57.8 in0.0 in
Row 2 Legroom38.7 in0.0 in
Cargo Volume,
Minimum
13.2 ft36.5 ft3
Cargo Volume,
Maximum
13.29.8 ft3

Return to top

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50Yes
Total Requested40053%
Total Not Requested35047%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Audi models.