Audi A8 / S8 Audi A8 / S8 2009 Mercedes-Benz SLK Mercedes-Benz SLK 2008

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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: $55,765

Mercedes-Benz SLK SLK280   
Difference: $20,550

Lowest Total Invoice: $51,921

Mercedes-Benz SLK SLK280   
Difference: $19,110

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092009200820082008
ModelA8 / S8A8 / S8SLKSLKSLK
TrimA8S8SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $74,050 $96,200 $44,150 $49,450 $63,200
Base Invoice $68,867 $89,465 $41,060 $45,988 $58,776
Wood/leather-wrapped steering wheel 690        
Leather door panel trim 750        
Premium II Package     3,995 3,995 1,410
Appearance Package     1,300 1,000  
Heating Package     980 980  
Lighting Package     1,010 1,010 1,010
Navigation system     1,200 1,200 1,200
Automatic climate control, front     720 720 720
CD changer, remote     450 450 450
iPod integration     375 375 375
Metallic paint (extra cost)     710 710 710
Wood/leather-wrapped steering wheel 641        
Leather door panel trim 698        
Premium II Package     3,715 3,715 1,311
Appearance Package     1,209 930  
Heating Package     911 911  
Lighting Package     939 939 939
Navigation system     1,116 1,116 1,116
Automatic climate control, front     670 670 670
CD changer, remote     418 418 418
iPod integration     349 349 349
Metallic paint (extra cost)     659 659 659
Options (change) 1,440 0 10,740 10,440 5,875
Options (change) 1,339 0 9,986 9,707 5,462
Destination 825 825 875 875 875
Gas Tax 0 2,100 0 0 1,300
Total Price $76,315 $99,125 $55,765 $60,765 $71,250
Total Invoice $71,031 $92,390 $51,921 $56,570 $66,413

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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 SLK280
TrueDelta Adjusted Price Difference: $18,520
TrueDelta Adjusted Invoice Difference: $17,221
Model Year20092009200820082008
ModelA8 / S8A8 / S8SLKSLKSLK
TrimA8S8SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine350hp V8450hp V10228hp V6268hp V6355hp V8
TransmissionT6T6M6T7T7
DrivetrainAWDAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)200, 12200, 12380, 11380, 11380, 11
Tire (rear if not all the same)255/45-18265/35-20225/45-17225/45-17225/40-18
Total Price$76,315$99,125$55,765$60,765$71,250
Adjustments for Features-2,030-2,5800-1,050-1,000
Feature-Adjusted Total Price$74,285$96,545$55,765$59,715$70,250
Cost Above Minimum$0$22,260$0$3,950$14,485
Total Invoice$71,031$92,390$51,921$56,570$66,413
Adjustments for Features-1,889-2,4050-978-932
Feature-Adjusted Total Invoice$69,142$89,985$51,921$55,592$65,481
Cost Above Minimum$0$20,843$0$3,671$13,560

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

Model Year20092009200820082008
ModelA8 / S8A8 / S8SLKSLKSLK
TrimA8S8SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100   
6-speed manual  $150  
7-speed manually-shiftable automatic   $1200$1200
AWD$1700$1700   
RWD  $0$0$0
Accessories 
Power door closers$300$300   
Power rear side windows$200$200   
Power trunk closer$350$350   
Proximity key$250$250   
Sunshade, rear, power$225$225   
Sunshades, second row$125$125   
Wind blocker, small  $100$100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0   
Full-size spare tire$225$225   
Obstacle detection, front$150$150   
Obstacle detection, rear$250$250   
Rear side airbags$300$300   
Rearview camera$200$200   
Side curtain airbags$350$350   
Temporary spare tire  $150$150$150
Climate Control 
Automatic air recirculation$100$100   
Rear air vents$100$100   
Exterior 
Body kit    $0
Bodyside moldings$75$75   
Power retractable hardtop  $6750$6750$6750
Rear spoiler    $200
Sunroof$900$900   
Infotainment 
Aux input  $50$50$50
CD player  $125$125$125
Telematics service, such as OnStar  $200$200$200
Voice control for nav and audio$100$100   
Instruments, Lights, and Mirrors 
Analog clock  $25$25$25
Auto-dimming passenger-side mirror$75$75   
Illuminated visor mirror, driver$50$50   
Illuminated visor mirror, passenger$50$50   
Power-folding mirrors$50$50   
Steering-linked headlights$150$150   
Visor mirror, driver  $10$10$10
Visor mirror, passenger  $10$10$10
Seats and Interior Trim 
Aluminum trim    $100
Center armrest(s), second row$50$50   
Leather-wrapped steering wheel $150  $150
Metal pedals  $75$75$75
Neck-level heating, front seats  $150$150 
No leather in second row  $-300$-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   
Synthetic suede inserts in leather seating surfaces    $0
Wood trim$300$300$300$300 
Wood/leather-wrapped steering wheel$150 $150$150 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500   
Air suspension, auto-leveling and height adjustable$1000$1000   
Sport suspension (upgrade) $0  $0
Transmission 
Steering-wheel-mounted transmission controls$100   $100
Total Value of Features$9,975$10,525$7,945$8,995$8,945
Value of Feature Adjustments$2,030$2,580$0$1,050$1,000
Value of Feature Adjustments-1,889-2,4050-978-932

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

Model Year20092008
ModelA8 / S8SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase115.9 in95.7 in
Length199.3 in160.7 in
Width74.6 in70.4 in
Height56.9 in51.0 in
Curb Weight4,289 lb.3,210 lb.
Fuel Capacity23.8 gal.18.5 gal.
Row 1 Headroom37.3 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 Headroom38.0 in0.0 in
Row 2 Shoulder Room57.5 in0.0 in
Row 2 Legroom37.6 in0.0 in
Cargo Volume,
Minimum
14.6 ft36.5 ft3
Cargo Volume,
Maximum
14.69.8 ft3

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Option Package Details
Mercedes-Benz SLK SLK280

Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Memory system, driver seat200Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Tilt/telescoping steering wheel, power100Yes
Power tilt adjuster, passenger seat50Yes
Power fore-aft adjuster, driver seat100Yes
Auto-dimming driver-side mirror75Yes
Power height adjuster, driver seat50Yes
Remote window/roof operation15Yes
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25Yes
Power recliner, driver seat100Yes
Interior ambient lighting150Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers175Yes
Total Requested259087%
Total Not Requested40013%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel150Yes
245/40ZR17 tires200No
Total Requested45053%
Total Not Requested40047%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK350

Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Memory system, driver seat200Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Tilt/telescoping steering wheel, power100Yes
Power tilt adjuster, passenger seat50Yes
Power fore-aft adjuster, driver seat100Yes
Auto-dimming driver-side mirror75Yes
Power height adjuster, driver seat50Yes
Remote window/roof operation15Yes
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25Yes
Power recliner, driver seat100Yes
Interior ambient lighting150Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers175Yes
Total Requested259087%
Total Not Requested40013%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel150Yes
245/40ZR17 tires200No
Total Requested45053%
Total Not Requested40047%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%

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 input50No
Total Requested35047%
Total Not Requested40053%

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