Audi A8 / S8 Audi A8 / S8 2018 Mercedes-Benz SLK Mercedes-Benz SLK 2012
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Audi A8 / S8 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 / S8 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $76,965

Mercedes-Benz SLK SLK55 AMG   
Difference: $39,910

Lowest Total Invoice: $71,641

Mercedes-Benz SLK SLK55 AMG   
Difference: $37,122

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182012
ModelA8 / S8SLK
TrimS8 PlusSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $115,900 $67,500
Base Invoice $107,788 $62,775
Lighting Package   1,090
Multimedia Package   2,150
Automatic climate control, front   760
Obstacle detection, rear   970
Metallic paint (extra cost)   720
Proximity key   650
Carbon fiber trim   2,250
Lighting Package   1,014
Multimedia Package   2,000
Automatic climate control, front   707
Obstacle detection, rear   902
Metallic paint (extra cost)   670
Proximity key   605
Carbon fiber trim   2,093
Options (change) 0 8,590
Options (change) 0 7,991
Destination 975 875
Total Price $116,875 $76,965
Total Invoice $108,763 $71,641

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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 A8 / S8 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 / S8 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $34,740
TrueDelta Adjusted Invoice Difference: $32,311
Model Year20182012
ModelA8 / S8SLK
TrimS8 PlusSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine605hp V8415hp V8
TransmissionT8T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/24 MPG19/28 MPG
Audio (watts, speakers)630, 14500, 11
Tire (rear if not all the same)275/35-21235/40-18
Total Price$116,875$76,965
Adjustments for Features-5,1700
Feature-Adjusted Total Price$111,705$76,965
Total Invoice$108,763$71,641
Adjustments for Features-4,8110
Feature-Adjusted Total Invoice$103,952$71,641

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Features Comparison: Audi A8 / S8 vs. Mercedes-Benz SLK

Model Year20182012
ModelA8 / S8SLK
TrimS8 PlusSLK55 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 
Active noise reduction$0 
Hands-free trunk or liftgate$100 
Parking guidance system - passive $250
Power door closers$300 
Power rear side windows$200 
Power trunk closer$350 
Remote app $25
Sunshade, rear, power$225 
Sunshades, second row, power$225 
Brakes, Airbags, and Other Safety 
Around view cameras$500 
Blind spot warning system$200 
Brake- or yaw-sensor-initiated collision preparation system$0 
Collision preparation system, rear$100 
Driver drowsiness monitor $150
Full-size spare tire$225 
Rear side airbags$300 
Roll bar $200
Rollover sensor$50 
Temporary spare tire $150
Torque vectoring, brake-based $100
Wide-view front camera$150 
Wide-view rear camera$0 
Cargo Management 
Air-conditioned storage compartment$50 
Cargo net$40 
Climate Control 
Automatic air recirculation$100 
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Engine / Motor 
Automatic start / stop $150
Exterior 
Laminated front side windows$200 
Laminated rear side windows$100 
Power retractable hardtop $6750
Sunroof$900 
Infotainment 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
In-vehicle Internet$150 
Telematics service, such as OnStar $200
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200 
Auto-dimming passenger-side mirror$75 
Cornering lights$50 
Head-up display (HUD)$350 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Interior ambient lighting $150
Interior ambient lighting, configurable$150 
LED headlights$1000 
Visor mirror, driver $10
Visor mirror, passenger $10
Xenon HID headlights $500
Seats and Interior Trim 
Center armrest(s), second row$50 
Cooled or ventilated front seats$300 
Massage, driver seat$100 
Massage, passenger seat$100 
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 seat belt height adjusters, front row$25 
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
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 headliner$650 
Synthetic suede inserts in leather seating surfaces $0
Upholstered instrument panel$300 
Suspension, Wheels, and Tires 
Active steering$1000 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade) $0
Total Value of Features$15,265$10,095
Value of Feature Adjustments$5,170$0
Value of Feature Adjustments-4,8110

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See a complete comparison of Audi A8 / S8 vs. Mercedes-Benz SLK features.

Specifications Comparison: Audi A8 / S8 vs. Mercedes-Benz SLK

Model Year20182012
ModelA8 / S8SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase117.8 in95.7 in
Length202.6 in162.8 in
Width76.7 in71.5 in
Height57.4 in51.2 in
Curb Weight4,685 lb.3,583 lb.
Fuel Capacity21.7 gal.15.9 gal.
Row 1 Headroom37.2 in38.0 in
Row 1 Shoulder Room59.1 in52.2 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		14.2 ft36.4 ft3
Cargo Volume,
Maximum		14.210.1 ft3

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See a complete comparison of Audi A8 / S8 vs. Mercedes-Benz SLK specs.

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, front150Yes
Parking guidance system - passive250No
Total Requested40062%
Total Not Requested25038%
Lighting Package
FeatureValueRequested?
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Total Requested700100%
Total Not Requested00%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
CD changer, in-dash200No
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Media drive, large15Yes
Traffic + travel information25Yes
SD Card slot25Yes
Total Requested76579%
Total Not Requested20021%

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