Mercedes-Benz SLK Mercedes-Benz SLK 2008 Audi A4 / S4 Audi A4 / S4 2009
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Mercedes-Benz SLK vs. Audi A4 / S4 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.

Mercedes-Benz SLK vs. Audi A4 / S4 Invoice Comparison

Lowest Total Price: $65,150

Audi A4 / S4 S4 Cabriolet   
Difference: $5,650

Lowest Total Invoice: $60,738

Audi A4 / S4 S4 Cabriolet   
Difference: $5,257

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082009
ModelSLKA4 / S4
TrimSLK55 AMGS4 Cabriolet
Body2dr Hardtop conv.2dr Convertible
Base Price $63,200 $57,125
Base Invoice $58,776 $53,127
Lighting Package 1,010  
Metallic paint (extra cost) 710 475
Automatic climate control, front 720  
Navigation system 1,200 1,950
Premium II Package 1,410  
iPod integration 375 0
Convenience Package   2,275
6-speed shiftable automatic   1,200
Lighting Package 939  
Metallic paint (extra cost) 659 443
Automatic climate control, front 670  
Navigation system 1,116 1,813
Premium II Package 1,311  
iPod integration 349 0
Convenience Package   2,115
6-speed shiftable automatic   1,115
Options (change) 5,425 5,900
Options (change) 5,044 5,486
Destination 875 825
Gas Tax 1,300 1,300
Total Price $70,800 $65,150
Total Invoice $65,995 $60,738

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Mercedes-Benz SLK dealer quotes or Audi A4 / S4 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: Mercedes-Benz SLK vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4 Cabriolet
TrueDelta Adjusted Price Difference: $4,990
TrueDelta Adjusted Invoice Difference: $4,642
Model Year20082009
ModelSLKA4 / S4
TrimSLK55 AMGS4 Cabriolet
Body2dr Hardtop conv.2dr Convertible
Engine355hp V8340hp V8
TransmissionT7T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)14/20 MPG14/21 MPG
Audio (watts, speakers)380, 11215, 9
Tire (rear if not all the same)225/40-18235/40-18
Total Price$70,800$65,150
Adjustments for Features-6600
Feature-Adjusted Total Price$70,140$65,150
Total Invoice$65,995$60,738
Adjustments for Features-6150
Feature-Adjusted Total Invoice$65,380$60,738

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Features Comparison: Mercedes-Benz SLK vs. Audi A4 / S4

Model Year20082009
ModelSLKA4 / S4
TrimSLK55 AMGS4 Cabriolet
Body2dr Hardtop conv.2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
6-speed manually-shiftable automatic $1100
RWD$0 
AWD $1700
Accessories 
Power rear side windows $200
Remote window/roof operation$15 
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Wind blocker $300
Wind blocker, small$100 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Auto-raising roll bars / headrests $500
Full-size spare tire $225
Temporary spare tire$150 
Cargo Management 
Rear seat pass-through $100
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Automatic air recirculation $100
Residual heat$50 
Exterior 
Body kit$0 
Bodyside moldings $75
Power convertible top $4000
Power retractable hardtop$6750 
Rear spoiler$200 
Infotainment 
Aux input$50 
Bluetooth cell phone link$100 
MP3-compatible player $50
SD Card slot $25
Surround sound$250 
Telematics service, such as OnStar$200 
Instruments, Lights, and Mirrors 
Analog clock$25 
Auto-dimming passenger-side mirror $75
Compass $0
Cornering lights$50 
Illuminated visor mirror, driver $50
Illuminated visor mirror, passenger $50
Mirror tilt-down in reverse$25 
Steering-linked headlights $150
Visor mirror, driver$10 
Visor mirror, passenger$10 
Seats and Interior Trim 
Center armrest(s), second row $50
Manual height adjuster, driver seat $50
Manual thigh support length adjuster, driver seat $50
Memory system, passenger seat$150 
Metal pedals$75 
No leather in second row$-300 
Power fore-aft adjuster, driver seat$100 
Power height adjuster, driver seat$100 
Power recliner, driver seat$100 
Power tilt adjuster, driver seat$100 
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Sport suspension (upgrade)$0 
Ultra-sport suspension (upgrade) $0
Total Value of Features$9,860$9,200
Value of Feature Adjustments$660$0
Value of Feature Adjustments-6150

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See a complete comparison of Mercedes-Benz SLK vs. Audi A4 / S4 features.

Specifications Comparison: Mercedes-Benz SLK vs. Audi A4 / S4

Model Year20082009
ModelSLKA4 / S4
Body2dr Hardtop conv.2dr Convertible
Wheelbase95.7 in104.3 in
Length160.7 in180.0 in
Width70.4 in70.0 in
Height51.0 in54.8 in
Curb Weight3,420 lb.4,211 lb.
Fuel Capacity18.5 gal.16.6 gal.
Row 1 Headroom37.9 in38.0 in
Row 1 Shoulder Room52.2 in53.0 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.5 in41.3 in
Row 2 Headroom0.0 in36.3 in
Row 2 Shoulder Room0.0 in45.1 in
Row 2 Legroom0.0 in32.4 in
Cargo Volume,
Minimum		6.5 ft38.9 ft3
Cargo Volume,
Maximum		9.8 ft38.9 ft3

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See a complete comparison of Mercedes-Benz SLK vs. Audi A4 / S4 specs.

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100No
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested00%
Total Not Requested750100%

Option Package Details
Audi A4 / S4 S4 Cabriolet

6-speed manually-shiftable automatic
FeatureValueRequested?
6-speed manually-shiftable automatic0Yes
1300 Gas-Guzzler Tax0Yes
4.2L V8
DOHC-5v
340 hp@6800
302 lb-ft@3500		1000Yes
Steering-wheel-mounted transmission controls100Yes
Total Requested1100100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote200No
SD Card slot25No
Total Requested60073%
Total Not Requested22527%
Convenience Package
FeatureValueRequested?
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Rain-sensing wipers100Yes
Automatic headlights125Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Total Requested75057%
Total Not Requested57543%

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