Audi A4 / S4 Audi A4 / S4 2021 Mercedes-Benz SLK Mercedes-Benz SLK 2010

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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: $54,120

Audi A4 / S4 S4   
Difference: $19,775

Calculate Payments

  Down Payment Interest Rate Term
Model Year20212010
ModelA4 / S4SLK
TrimS4SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $49,900 $66,650
Navigation and Telematics Package 2,600  
Metallic paint (extra cost) 575 720
Lighting Package   1,050
Multimedia Package   2,850
Automatic climate control, front   750
Navigation and Telematics Package 2,418  
Metallic paint (extra cost) 536 670
Lighting Package   976
Multimedia Package   2,650
Automatic climate control, front   698
Options (change) 3,175 5,370
Options (change) 2,954 4,994
Destination 1,045 875
Gas Tax 0 1,000
Total Price $54,120 $73,895

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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: $21,490
TrueDelta Adjusted Invoice Difference: $64,982
Model Year20212010
ModelA4 / S4SLK
TrimS4SLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine349hp V6355hp V8
TransmissionT8T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)20/28 MPG14/22 MPG
Audio (watts, speakers)755, 19?, 9
Tire (rear if not all the same)245/40-18225/40-18
Total Price$54,120$73,895
Adjustments for Features-1,7150
Feature-Adjusted Total Price$52,405$73,895

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

Model Year20212010
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 
Power rear side windows$200 
Proximity key$250 
Remote app$25 
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 
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 
Forward collision warning$200 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Pedestrian detection$50 
Radar- or camera-based collision preparation system$0 
Rearview camera$200 
Rollover sensor$50 
Secondary collision brake assist$25 
Side curtain airbags$350 
Torque vectoring, brake-based$100 
Vehicle exit assist$25 
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 
Power retractable hardtop $6750
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player, remote$100 
Handwriting recognition$200 
In-vehicle Internet$150 
iPod integration $100
Surround sound$250 
Traffic + travel information$25 
Traffic information $25
USB port$25 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Analog clock $25
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 
Visor mirror, driver $10
Visor mirror, passenger $10
Xenon HID headlights $500
Seats and Interior Trim 
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
Synthetic suede door panel trim$250 
Suspension, Wheels, and Tires 
Electronic systems calibration selector$200 
Transmission 
Launch control$100 
Total Value of Features$11,500$9,785
Value of Feature Adjustments$1,715$0
Value of Feature Adjustments-1270

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

Model Year20212010
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 and Telematics Package
FeatureValueRequested?
Large color reconfigurable instrument cluster display250No
Handwriting recognition200No
Remote app25No
Speed limit information0No
4G LTE connectivity0No
Navigation system600Yes
DVD-compatible player0Yes
Voice control for nav and audio75Yes
Media drive15Yes
Traffic + travel information25No
In-vehicle Internet150No
Wi-Fi hotspot50No
Total Requested69050%
Total Not Requested70050%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Traffic information25Yes
HD radio50Yes
Media drive, large15Yes
SD Card slot25Yes
Total Requested1015100%
Total Not Requested00%

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