Audi A8 / S8 Audi A8 / S8 2009 Mercedes-Benz SLK Mercedes-Benz SLK 2007

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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: $53,720

Mercedes-Benz SLK SLK280   
Difference: $21,845

Lowest Total Invoice: $50,012

Mercedes-Benz SLK SLK280   
Difference: $20,321

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092009200720072007
ModelA8 / S8A8 / S8SLKSLKSLK
TrimA8S8SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $74,050 $96,200 $43,350 $47,400 $62,500
Base Invoice $68,867 $89,465 $40,316 $44,082 $58,125
Wood/leather-wrapped steering wheel 690        
Premium II Package     3,650 3,650 1,400
Heating Package     970 970  
Lighting Package     1,000 1,000 1,000
Navigation system     1,200 1,200 1,200
Bluetooth cell phone link     925 925 925
Automatic climate control, front     710 710 710
CD changer, remote     440 440 440
Metallic paint (extra cost)     700 700 700
Appearance Package       990  
Wood/leather-wrapped steering wheel 641        
Premium II Package     3,394 3,394 1,302
Heating Package     902 902  
Lighting Package     930 930 930
Navigation system     1,116 1,116 1,116
Bluetooth cell phone link     860 860 860
Automatic climate control, front     660 660 660
CD changer, remote     409 409 409
Metallic paint (extra cost)     650 650 650
Appearance Package       921  
Options (change) 690 0 9,595 10,585 6,375
Options (change) 641 0 8,921 9,842 5,927
Destination 825 825 775 775 775
Gas Tax 0 2,100 0 0 1,300
Total Price $75,565 $99,125 $53,720 $58,760 $70,950
Total Invoice $70,333 $92,390 $50,012 $54,699 $66,127

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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.

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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: $19,440
TrueDelta Adjusted Invoice Difference: $18,083
Model Year20092009200720072007
ModelA8 / S8A8 / S8SLKSLKSLK
TrimA8S8SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine350hp V8450hp V10228hp V6268hp V6355hp V8
TransmissionT6T6M6M6T7
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)255/45-18265/35-20205/55-16225/45-17225/40-18
Total Price$75,565$99,125$53,720$58,760$70,950
Adjustments for Features-2,405-2,3050-300-1,300
Feature-Adjusted Total Price$73,160$96,820$53,720$58,460$69,650
Cost Above Minimum$0$23,660$0$4,740$15,930
Total Invoice$70,333$92,390$50,012$54,699$66,127
Adjustments for Features-2,238-2,1480-279-1,212
Feature-Adjusted Total Invoice$68,095$90,242$50,012$54,420$64,915
Cost Above Minimum$0$22,147$0$4,408$14,903

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

Model Year20092009200720072007
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$150 
7-speed manually-shiftable automatic    $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   
Obstacle detection, front$150$150   
Obstacle detection, rear$250$250   
Rear side airbags$300$300   
Rearview camera$200$200   
Side curtain airbags$350$350   
Tire-pressure monitor$75$75   
Climate Control 
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
iPod integration$100$100   
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 $150
Neck-level heating, front seats  $150$150 
Power 4-way lumbar adjuster, driver seat$150$150   
Power 4-way lumbar adjuster, passenger seat$150$150   
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 inserts in leather seating surfaces    $0
Wood trim$300$300 $300 
Wood/leather-wrapped steering wheel$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$10,125$10,025$7,720$8,020$9,020
Value of Feature Adjustments$2,405$2,305$0$300$1,300
Value of Feature Adjustments-2,238-2,1480-279-1,212

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

Model Year20092007
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?
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Auto-dimming driver-side mirror75Yes
Tilt/telescoping steering wheel, power100Yes
Remote window/roof operation15Yes
Power fore-aft adjuster, driver seat100Yes
Mirror tilt-down in reverse25Yes
Power height adjuster, driver seat50Yes
Interior ambient lighting150No
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers175Yes
Memory system, driver seat200Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Total Requested204079%
Total Not Requested55021%
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?
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Auto-dimming driver-side mirror75Yes
Tilt/telescoping steering wheel, power100Yes
Remote window/roof operation15Yes
Power fore-aft adjuster, driver seat100Yes
Mirror tilt-down in reverse25Yes
Power height adjuster, driver seat50Yes
Interior ambient lighting150No
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers175Yes
Memory system, driver seat200Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Total Requested204079%
Total Not Requested55021%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel0Yes
245/40ZR17 tires200No
Total Requested30043%
Total Not Requested40057%
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?
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested25038%
Total Not Requested40062%

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