Mercedes-Benz SLK Mercedes-Benz SLK 2015 Audi A4 / S4 Audi A4 / S4 2022

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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: $61,890

Audi A4 / S4 S4   
Difference: $16,215

Lowest Total Invoice: $58,245

Audi A4 / S4 S4   
Difference: $14,459

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152022
ModelSLKA4 / S4
TrimSLK55 AMGS4
Body2dr Hardtop conv.4dr Sedan
Base Price $70,900 $51,900
Base Invoice $65,937 $48,787
Automatic climate control, front 760  
Multimedia Package 2,330  
Obstacle detection, rear 970  
Metallic paint (extra cost) 720 595
Illuminated door sill trim plates 850  
Proximity key 650  
Prestige Package   4,700
Premium Plus Package   3,600
Automatic climate control, front 707  
Multimedia Package 2,167  
Obstacle detection, rear 902  
Metallic paint (extra cost) 670 560
Illuminated door sill trim plates 791  
Proximity key 605  
Prestige Package   4,419
Premium Plus Package   3,384
Options (change) 6,280 8,895
Options (change) 5,842 8,363
Destination 925 1,095
Total Price $78,105 $61,890
Total Invoice $72,704 $58,245

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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 Mercedes-Benz SLK dealer quotes or Audi A4 / S4 dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4
TrueDelta Adjusted Price Difference: $18,665
TrueDelta Adjusted Invoice Difference: $16,765
Model Year20152022
ModelSLKA4 / S4
TrimSLK55 AMGS4
Body2dr Hardtop conv.4dr Sedan
Engine415hp V8349hp V6
TransmissionT7T8
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)19/28 MPG21/30 MPG
Audio (watts, speakers)500, 11755, 19
Tire (rear if not all the same)235/40-18245/40-18
Total Price$78,105$61,890
Adjustments for Features0-2,450
Feature-Adjusted Total Price$78,105$59,440
Total Invoice$72,704$58,245
Adjustments for Features0-2,306
Feature-Adjusted Total Invoice$72,704$55,939

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

Model Year20152022
ModelSLKA4 / S4
TrimSLK55 AMGS4
Body2dr Hardtop conv.4dr Sedan
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
8-speed manually-shiftable automatic $1300
RWD$0 
AWD $1700
Accessories 
Adaptive cruise control, all-speed, topography and road sign aware $1100
Cruise control$150 
Heated steering wheel $100
Low-speed semi-autonomous driving $100
Parking guidance system - passive$250 
Power rear side windows $200
Remote app$25 
Remote window/roof operation$15 
Semi-automated parking system $500
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Around view cameras $500
Automatic braking, high-speed or partial $200
Automatic braking, low-speed $200
Blind spot warning system $200
Collision preparation system, rear $100
Cross-traffic warning, rear $100
Evasive maneuver assist $200
Following distance indicator $25
Forward collision warning $200
Lane departure warning $200
Lane keeping assist $400
Pedestrian detection $50
Radar- or camera-based collision preparation system $0
Roll bar$200 
Rollover sensor $50
Secondary collision brake assist $25
Turn assist $25
Vehicle exit assist $25
Wide-view front camera $150
Wide-view rear camera $0
Cargo Management 
Air-conditioned storage compartment $50
Climate Control 
Automatic air recirculation $100
Rear air vents with automatic controls $250
Residual heat$50 
Engine / Motor 
Dual-mode exhaust, switchable$500 
Regenerative braking $0
Exterior 
Body kit$0 
Glass roof panel(s)$300 
Laminated front side windows $200
Power retractable hardtop$6750 
Sunroof $900
Infotainment 
4G LTE connectivity $0
Alexa integration $0
Android Auto support $100
App support$0 
Apple CarPlay support $100
Aux input$50 
CD player$125 
DVD-compatible player$0 
Handwriting recognition $200
Media drive$15 
MP3-compatible player$50 
Navigation map updates, three years$0 
SD Card slot$25 
SMS text-to-speech reader$25 
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Traffic + travel information$25 
Traffic information $25
Traffic light information $50
Wi-Fi hotspot $50
Wireless charging station $75
Instruments, Lights, and Mirrors 
Analog clock$25 
Auto-dimming passenger-side mirror $75
Boost gauge $75
Fog lights $125
Head-up display (HUD) $350
Illuminated visor mirror, driver $50
Illuminated visor mirror, passenger $50
Interior ambient lighting$150 
Interior ambient lighting, configurable $150
Large color reconfigurable instrument cluster display $250
LED headlights $1000
Mirror tilt-down in reverse$25 
Predictive efficiency assist $0
Road sign information $75
Steering-linked headlights$150 
Visor mirror, driver$10 
Visor mirror, passenger$10 
Xenon HID headlights$500 
Seats and Interior Trim 
Aluminum trim$100 
Center armrest(s), second row $50
Folding second row seats $300
Heated second row seats $200
Leather door panel trim$250 
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger seat $50
Massage, driver seat $100
Massage, passenger seat $100
Memory system, passenger seat$150 
Neck-level heating, front seats$150 
No leather in second row$-300 
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Synthetic suede door panel trim $250
Upholstered door armrests (optional) $0
Suspension, Wheels, and Tires 
Electronic systems calibration selector $200
Transmission 
Launch control $100
Total Value of Features$11,550$14,000
Value of Feature Adjustments$0$2,450
Value of Feature Adjustments0-2,306

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

Model Year20152022
ModelSLKA4 / S4
Body2dr Hardtop conv.4dr Sedan
Wheelbase95.7 in111.0 in
Length162.8 in187.5 in
Width71.5 in72.7 in
Height51.2 in56.2 in
Curb Weight3,583 lb.3,847 lb.
Fuel Capacity15.9 gal.15.3 gal.
Row 1 Headroom38.0 in37.3 in
Row 1 Shoulder Room52.2 in55.9 in
Row 1 Legroom42.5 in41.3 in
Row 2 Headroom0.0 in37.4 in
Row 2 Shoulder Room0.0 in54.5 in
Row 2 Legroom0.0 in35.7 in
Cargo Volume,
Minimum
6.4 ft312.0 ft3
Cargo Volume,
Maximum
10.1 ft312.0 ft3

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Option Package Details
Mercedes-Benz SLK SLK55 AMG

Multimedia Package
FeatureValueRequested?
DVD-compatible player0No
Media drive15No
Traffic + travel information25Yes
SD Card slot25No
In-vehicle Internet150Yes
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested87596%
Total Not Requested404%

Option Package Details
Audi A4 / S4 S4

Prestige Package
FeatureValueRequested?
Heated second row seats200No
Head-up display (HUD)350No
Headlight washers50Yes
Surround sound250Yes
Laminated front side windows200No
Semi-automated parking system500No
Interior ambient lighting, configurable0No
Bang & Olufsen, 755W, 19 speakers (with subwoofer)350No
Navigation system600Yes
Voice control for nav and audio75Yes
Traffic information25Yes
Handwriting recognition200No
Traffic light information50No
Total Requested100035%
Total Not Requested185065%
Premium Plus Package
FeatureValueRequested?
245/40HR18 tires400No
Around view cameras300No
Wide-view front camera150No
Large color reconfigurable instrument cluster display250No
Wide-view rear camera0No
Wireless charging station75No
Upholstered door armrests (optional)0No
Auto-dimming passenger-side mirror75No
Blind spot warning system200No
Cross-traffic warning, rear100No
Collision preparation system, rear100No
Vehicle exit assist25No
Memory system, driver seat200Yes
Satellite radio200Yes
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Heated steering wheel100No
Auto-dimming driver-side mirror75Yes
Alarm100No
Proximity key250Yes
Power-folding mirrors50Yes
Evasive maneuver assist200No
Predictive efficiency assist0No
Adaptive cruise control, all-speed, topography and road sign aware950No
Road sign information75No
Turn assist25No
Lane keeping assist400No
Following distance indicator25No
Low-speed semi-autonomous driving100No
Total Requested117524%
Total Not Requested365076%

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