Audi A8 / S8 Audi A8 / S8 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2016

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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: $62,325

Mercedes-Benz SLK SLK300   
Difference: $13,230

Lowest Total Invoice: $58,028

Mercedes-Benz SLK SLK300   
Difference: $12,270

Calculate Payments

  Down Payment Interest Rate Term
Model Year2008200820162016
ModelA8 / S8A8 / S8SLKSLK
TrimA8S8SLK300SLK350
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.
Base Price $70,690 $93,300 $47,000 $59,200
Base Invoice $65,741 $86,771 $43,710 $55,056
Wood/leather-wrapped steering wheel 690   990 990
Satellite radio 550 550    
Leather door panel trim 750      
Adaptive cruise control 2,100 2,100    
Driver Assistance Package   1,400    
Heated steering wheel   300    
Premium 3 Package     3,790 3,790
Premium 2 Package     4,490 4,490
Premium 1 Package     3,390  
Leather seating surfaces     770  
Special order charge     250 250
Metallic paint (extra cost)     720 720
Wood/leather-wrapped steering wheel 641   921 921
Satellite radio 490 501    
Leather door panel trim 698      
Adaptive cruise control 1,953 1,953    
Driver Assistance Package   1,303    
Heated steering wheel   281    
Premium 3 Package     3,525 3,525
Premium 2 Package     4,175 4,175
Premium 1 Package     3,153  
Leather seating surfaces     716  
Special order charge     233 233
Metallic paint (extra cost)     670 670
Options (change) 4,090 4,350 14,400 10,240
Options (change) 3,782 4,038 13,393 9,524
Destination 775 775 925 925
Gas Tax 0 2,100 0 0
Total Price $75,555 $100,525 $62,325 $70,365
Total Invoice $70,298 $93,684 $58,028 $65,505

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

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

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK300
TrueDelta Adjusted Price Difference: $18,915
TrueDelta Adjusted Invoice Difference: $17,563
Model Year2008200820162016
ModelA8 / S8A8 / S8SLKSLK
TrimA8S8SLK300SLK350
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.
Engine350hp V8450hp V10241hp I4302hp V6
TransmissionT6T6T9T7
DrivetrainAWDAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)200, 12200, 12500, 11500, 11
Tire (rear if not all the same)255/45-18265/35-20225/45-17225/40-18
Total Price$75,555$100,525$62,325$70,365
Adjustments for Features0-1,050-5,685-5,485
Feature-Adjusted Total Price$75,555$99,475$56,640$64,880
Cost Above Minimum$0$23,920$0$8,240
Total Invoice$70,298$93,684$58,028$65,505
Adjustments for Features0-979-5,293-5,106
Feature-Adjusted Total Invoice$70,298$92,705$52,735$60,399
Cost Above Minimum$0$22,407$0$7,664

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

Model Year2008200820162016
ModelA8 / S8A8 / S8SLKSLK
TrimA8S8SLK300SLK350
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100  
9-speed manually-shiftable automatic  $1400 
7-speed manually-shiftable automatic   $1200
AWD$1700$1700  
RWD  $0$0
Accessories 
Adaptive cruise control$600$600  
Adaptive cruise control, all-speed  $850$850
Heated steering wheel $100  
Power rear side windows$200$200  
Power trunk / liftgate pull-down$50$50  
Proximity key  $250$250
Remote app  $25$25
Semi-automated parking system  $500$500
Brakes, Airbags, and Other Safety 
Automatic braking, high-speed or partial  $200$200
Automatic braking, low-speed  $200$200
Blind spot collision prevention  $150$150
Blind spot warning system $200$200$200
Driver drowsiness monitor  $150$150
Forward collision warning  $200$200
Full-size spare tire$225$225  
Lane departure prevention  $150$150
Lane departure warning $200$200$200
Obstacle detection, front  $150$150
Obstacle detection, rear  $250$250
Radar- or camera-based collision preparation system  $0$0
Rear side airbags$300$300  
Roll bar  $200$200
Temporary spare tire  $150$150
Torque vectoring, brake-based  $100$100
Climate Control 
Automatic air recirculation$100$100  
Rear air vents$100$100  
Engine / Motor 
Automatic start / stop  $150$150
Exterior 
Body kit   $0
Bodyside moldings$75$75  
Glass roof panel(s)  $300$300
Power retractable hardtop  $6750$6750
Sunroof$900$900  
Infotainment 
App support  $0$0
Aux input  $50$50
Bluetooth audio streaming  $25$25
CD changer, remote$200$200  
CD player  $125$125
DVD-compatible player  $0$0
HD radio  $50$50
In-vehicle Internet  $150$150
iPod integration$100$100  
Media drive  $15$15
MP3-compatible player  $50$50
Navigation map updates, three years  $0$0
SD Card slot  $25$25
SMS text-to-speech reader  $25$25
Telematics service, such as OnStar, with navigation  $225$225
Traffic + travel information  $25$25
USB port  $25$25
Instruments, Lights, and Mirrors 
Analog clock  $25$25
Auto-dimming headlights  $200$200
Auto-dimming passenger-side mirror$75$75  
Compass  $0$0
Cornering lights$50$50  
Fog lights$125$125  
Illuminated visor mirror, driver$50$50  
Illuminated visor mirror, passenger$50$50  
Interior ambient lighting$150$150  
Visor mirror, driver  $10$10
Visor mirror, passenger  $10$10
Seats and Interior Trim 
Aluminum trim  $100$100
Center armrest(s), second row$50$50  
Heated second row seats$200$200  
Leather-wrapped steering wheel $150  
Metal pedals  $75$75
Neck-level heating, front seats  $150$150
No leather in second row  $-300$-300
Power headrest height adjuster, driver seat$50$50  
Power headrest height adjuster, passenger seat$50$50  
Power thigh support length adjuster, driver seat$100$100  
Power thigh support length adjuster, passenger seat$100$100  
Power upper seatback recliner, driver seat$100$100  
Power upper seatback recliner, passenger seat$100$100  
Synthetic suede headliner $650  
Wood/leather-wrapped steering wheel$150 $150$150
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000$1000  
Sport suspension (upgrade) $0  
Transmission 
Steering-wheel-mounted transmission controls$100 $100$100
Total Value of Features$8,150$9,200$13,835$13,635
Value of Feature Adjustments$0$1,050$5,685$5,485
Value of Feature Adjustments0-979-5,293-5,106

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

Model Year20082016
ModelA8 / S8SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase115.9 in95.7 in
Length199.3 in162.8 in
Width74.6 in71.5 in
Height56.9 in51.2 in
Curb Weight4,289 lb.3,242 lb.
Fuel Capacity23.8 gal.15.9 gal.
Row 1 Headroom37.3 in38.0 in
Row 1 Shoulder Room59.1 in52.2 in
Row 1 Legroom41.4 in42.5 in
Row 2 Headroom38.0 in0.0 in
Row 2 Shoulder Room57.5 in0.0 in
Row 2 Legroom37.6 in0.0 in
Cargo Volume,
Minimum
14.6 ft36.4 ft3
Cargo Volume,
Maximum
14.610.1 ft3

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Option Package Details
Audi A8 / S8 S8

Driver Assistance Package
FeatureValueRequested?
Lane departure warning system200Yes
Blind spot warning system200Yes
Total Requested400100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK300

Leather seating surfaces
FeatureValueRequested?
Leather seating surfaces900Yes
Leather door panel trim250Yes
No leather in second row-300No
Total Requested1150135%
Total Not Requested-300-35%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Wood trim300Yes
Total Requested450100%
Total Not Requested00%
Premium 3 Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Adaptive cruise control, all-speed700No
Blind spot warning system200Yes
Lane departure prevention system150No
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Forward collision warning200No
Blind spot intervention150No
Radar- or camera-based collision preparation system0No
Lane departure warning system200Yes
Parking guidance system - active500No
Obstacle detection, front150No
Obstacle detection, rear250No
Total Requested90026%
Total Not Requested250074%
Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Analog clock25No
Blind spot warning system200Yes
Headlight washers50Yes
Auto-dimming headlights200No
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
DVD-compatible player0No
Media drive15No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested192581%
Total Not Requested44019%
Premium 1 Package
FeatureValueRequested?
Heated front seats200Yes
Satellite radio200Yes
Surround sound250Yes
Proximity key250No
Remote window/roof operation15Yes
Neck-level heating, front seats150No
iPod integration100Yes
Harman/Kardon, 500W, 11 speakers (with subwoofer)350No
Total Requested76550%
Total Not Requested75050%

Option Package Details
Mercedes-Benz SLK SLK350

Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Wood trim300Yes
Total Requested450100%
Total Not Requested00%
Premium 3 Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Adaptive cruise control, all-speed700No
Blind spot warning system200Yes
Lane departure prevention system150No
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Forward collision warning200No
Blind spot intervention150No
Radar- or camera-based collision preparation system0No
Lane departure warning system200Yes
Parking guidance system - active500No
Obstacle detection, front150No
Obstacle detection, rear250No
Total Requested90026%
Total Not Requested250074%
Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Analog clock25No
Blind spot warning system200Yes
Headlight washers50Yes
Auto-dimming headlights200No
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
DVD-compatible player0No
Media drive15No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested192581%
Total Not Requested44019%

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