Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2013

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Audi A4 / S4 / RS4 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 A4 / S4 / RS4 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $75,135

Mercedes-Benz SLK SLK55 AMG   
Difference: $9,640

Lowest Total Invoice: $69,941

Mercedes-Benz SLK SLK55 AMG   
Difference: $9,102

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082013
ModelA4 / S4 / RS4SLK
TrimRS4 CabrioletSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Base Price $81,900 $67,990
Base Invoice $76,168 $63,231
iPod integration 0  
Aluminum trim 0  
Lighting Package   1,290
Multimedia Package   2,150
Automatic climate control, front   760
Metallic paint (extra cost)   720
Wind blocker, small   350
Obstacle detection, rear   970
iPod integration 0  
Aluminum trim 0  
Lighting Package   1,200
Multimedia Package   2,000
Automatic climate control, front   707
Metallic paint (extra cost)   670
Wind blocker, small   326
Obstacle detection, rear   902
Options (change) 0 6,240
Options (change) 0 5,805
Destination 775 905
Gas Tax 2,100 0
Total Price $84,775 $75,135
Total Invoice $79,043 $69,941

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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 A4 / S4 / RS4 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 A4 / S4 / RS4 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $12,415
TrueDelta Adjusted Invoice Difference: $11,685
Model Year20082013
ModelA4 / S4 / RS4SLK
TrimRS4 CabrioletSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Engine420hp V8415hp V8
TransmissionM6T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)13/20 MPG19/28 MPG
Audio (watts, speakers)215, 9500, 11
Tire (rear if not all the same)255/35-19235/40-18
Total Price$84,775$75,135
Adjustments for Features0-2,775
Feature-Adjusted Total Price$84,775$72,360
Total Invoice$79,043$69,941
Adjustments for Features0-2,583
Feature-Adjusted Total Invoice$79,043$67,358

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Features Comparison: Audi A4 / S4 / RS4 vs. Mercedes-Benz SLK

Model Year20082013
ModelA4 / S4 / RS4SLK
TrimRS4 CabrioletSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
Accessories 
Parking guidance system - passive $250
Power rear side windows$200 
Remote app $25
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 
Auto-raising roll bars / headrests$500 
Driver drowsiness monitor $150
Full-size spare tire$225 
Obstacle detection, front $150
Roll bar $200
Side curtain airbags $350
Temporary spare tire $150
Torque vectoring, brake-based $100
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
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable $500
Exterior 
Bodyside moldings$75 
Power convertible top$4000 
Power retractable hardtop $6750
Sunroof$900 
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash $325
DVD-compatible player $0
HD radio $50
In-vehicle Internet $150
iPod integration$100 
Media drive $15
SD Card slot $25
SMS text-to-speech reader $25
Surround sound $250
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
USB port $25
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Fog lights$125 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Center armrest(s), second row$50 
Heated second row seats$200 
Manual height adjuster, driver seat$50 
Manual thigh support length adjuster, driver seat$50 
Memory system, passenger seat $150
Metal pedals $75
Neck-level heating, front seats $150
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 
Hydraulically cross-linked dampers$500 
Sport suspension (upgrade) $0
Ultra-sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$9,850$12,625
Value of Feature Adjustments$0$2,775
Value of Feature Adjustments0-2,583

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Specifications Comparison: Audi A4 / S4 / RS4 vs. Mercedes-Benz SLK

Model Year20082013
ModelA4 / S4 / RS4SLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase104.3 in95.7 in
Length180.0 in162.8 in
Width70.0 in71.5 in
Height54.8 in51.2 in
Curb Weight4,266 lb.3,583 lb.
Fuel Capacity16.6 gal.15.9 gal.
Row 1 Headroom38.0 in38.0 in
Row 1 Shoulder Room53.0 in52.2 in
Row 1 Legroom41.3 in42.5 in
Row 2 Headroom36.3 in0.0 in
Row 2 Shoulder Room45.1 in0.0 in
Row 2 Legroom32.4 in0.0 in
Cargo Volume,
Minimum
8.9 ft36.4 ft3
Cargo Volume,
Maximum
8.910.1 ft3

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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, front150No
Parking guidance system - passive250No
Total Requested25038%
Total Not Requested40062%
Lighting Package
FeatureValueRequested?
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Auto-dimming headlights200No
Total Requested70078%
Total Not Requested20022%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
CD changer, in-dash200No
DVD-compatible player0No
Voice control for nav and audio100No
Media drive, large15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Total Requested60054%
Total Not Requested51546%

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