Audi A4 / S4 Audi A4 / S4 2022 Mercedes-Benz SLK Mercedes-Benz SLK 2008

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

Lowest Total Price: $58,690

Audi A4 / S4 S4   
Difference: $12,110

Lowest Total Invoice: $55,237

Audi A4 / S4 S4   
Difference: $10,758

Calculate Payments

  Down Payment Interest Rate Term
Model Year20222008
ModelA4 / S4SLK
TrimS4SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $51,900 $63,200
Base Invoice $48,787 $58,776
Navigation Package 1,500  
Premium Plus Package 3,600  
Metallic paint (extra cost) 595 710
Lighting Package   1,010
iPod integration   375
Automatic climate control, front   720
Navigation system   1,200
Premium II Package   1,410
Navigation Package 1,411  
Premium Plus Package 3,384  
Metallic paint (extra cost) 560 659
Lighting Package   939
iPod integration   349
Automatic climate control, front   670
Navigation system   1,116
Premium II Package   1,311
Options (change) 5,695 5,425
Options (change) 5,355 5,044
Destination 1,095 875
Gas Tax 0 1,300
Total Price $58,690 $70,800
Total Invoice $55,237 $65,995

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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 dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4
TrueDelta Adjusted Price Difference: $16,475
TrueDelta Adjusted Invoice Difference: $14,866
Model Year20222008
ModelA4 / S4SLK
TrimS4SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine349hp V6355hp V8
TransmissionT8T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)21/30 MPG14/20 MPG
Audio (watts, speakers)180, 10380, 11
Tire (rear if not all the same)245/40-18225/40-18
Total Price$58,690$70,800
Adjustments for Features-4,3650
Feature-Adjusted Total Price$54,325$70,800
Total Invoice$55,237$65,995
Adjustments for Features-4,1080
Feature-Adjusted Total Invoice$51,129$65,995

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

Model Year20222008
ModelA4 / S4SLK
TrimS4SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
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 
Power rear side windows$200 
Proximity key$250 
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
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 
Driver drowsiness monitor$150 
Evasive maneuver assist$200 
Following distance indicator$25 
Forward collision warning$200 
Lane departure warning$200 
Lane keeping assist$400 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Pedestrian detection$50 
Radar- or camera-based collision preparation system$0 
Rollover sensor$50 
Secondary collision brake assist$25 
Side curtain airbags$350 
Torque vectoring, brake-based$100 
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 
Automatic start / stop$150 
Regenerative braking$0 
Exterior 
Body kit $0
Power retractable hardtop $6750
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
Alexa integration$0 
Android Auto support$100 
Apple CarPlay support$100 
Aux input $50
Bluetooth audio streaming$25 
CD player $125
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
iPod integration $100
Surround sound $250
Traffic information$25 
Traffic light information$50 
USB port$25 
Voice control for nav and audio$100 
Wi-Fi hotspot$50 
Wireless charging station$75 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights$200 
Auto-dimming passenger-side mirror$75 
Boost gauge$75 
Compass$0 
Cornering lights $50
Headlight washers $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Large color reconfigurable instrument cluster display$250 
LED headlights$1000 
Mirror tilt-down in reverse $25
Power-folding mirrors$50 
Predictive efficiency assist$0 
Road sign information$75 
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 
Door sill trim plates $100
Folding second row seats$300 
Illuminated door sill trim plates$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
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$14,475$10,110
Value of Feature Adjustments$4,365$0
Value of Feature Adjustments-4,1080

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

Model Year20222008
ModelA4 / S4SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase111.0 in95.7 in
Length187.5 in160.7 in
Width72.7 in70.4 in
Height56.2 in51.0 in
Curb Weight3,847 lb.3,420 lb.
Fuel Capacity15.3 gal.18.5 gal.
Row 1 Headroom37.3 in37.9 in
Row 1 Shoulder Room55.9 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.5 in
Row 2 Headroom37.4 in0.0 in
Row 2 Shoulder Room54.5 in0.0 in
Row 2 Legroom35.7 in0.0 in
Cargo Volume,
Minimum
12.0 ft36.5 ft3
Cargo Volume,
Maximum
12.09.8 ft3

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Option Package Details
Audi A4 / S4 S4

Navigation Package
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio75No
Traffic information25No
Handwriting recognition200No
Traffic light information50No
Total Requested60063%
Total Not Requested35037%
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
Memory system, driver seat200Yes
Satellite radio200Yes
Obstacle detection, front150No
Obstacle detection, rear250No
Heated steering wheel100No
Auto-dimming driver-side mirror75Yes
Alarm100No
Proximity key250No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Blind spot warning system200No
Cross-traffic warning, rear100No
Collision preparation system, rear100No
Vehicle exit assist25No
Road sign information75No
Turn assist25No
Lane keeping assist400No
Following distance indicator25No
Low-speed semi-autonomous driving100No
Evasive maneuver assist200No
Predictive efficiency assist0No
Adaptive cruise control, all-speed, topography and road sign aware950No
Total Requested47510%
Total Not Requested435090%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested10013%
Total Not Requested65087%

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