Audi A4 / S4 Audi A4 / S4 2006 Mercedes-Benz SLK Mercedes-Benz SLK 2006

We are 103,000+ car owners sharing real-world car information.

Join Us

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: $51,185

Audi A4 / S4 A4 3.0 Cabriolet   
Difference: $2,325

Lowest Total Invoice: $47,259

Audi A4 / S4 A4 3.0 Cabriolet   
Difference: $2,560

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062006200620062006
ModelA4 / S4A4 / S4SLKSLKSLK
TrimA4 3.0 CabrioletS4 CabrioletSLK280SLK350SLK55 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $45,490 $54,640 $42,900 $46,950 $61,500
Base Invoice $42,010 $50,256 $39,897 $43,664 $57,195
Premium Package 1,825 1,775 1,200 1,200 1,470
Metallic paint (extra cost) 450 450 690 690 690
Bluetooth cell phone link 500 500 925 925 925
Navigation system 1,950 1,950 1,200 1,200  
Sport suspension (upgrade) 250        
Audio controls on steering wheel   150      
Bose 215W 9 speakers   1,000      
Lighting Package     990 990 990
Interior Trim Package     710 710  
Comfort Package     1,300 1,300  
Heated front seats     690 690  
Entertainment Package     1,700 1,700  
CD changer, remote     430 430 430
Satellite radio         500
Premium Package 1,661 1,615 1,116 1,116 1,367
Metallic paint (extra cost) 410 410 642 642 642
Bluetooth cell phone link 455 455 860 860 860
Navigation system 1,775 1,775 1,116 1,116  
Sport suspension (upgrade) 228        
Audio controls on steering wheel   137      
Bose 215W 9 speakers   910      
Lighting Package     921 921 921
Interior Trim Package     660 660  
Comfort Package     1,209 1,209  
Heated front seats     642 642  
Entertainment Package     1,581 1,581  
CD changer, remote     400 400 400
Satellite radio         465
Options (change) 4,975 5,825 9,835 9,835 5,005
Options (change) 4,529 5,302 9,147 9,147 4,655
Destination 720 720 775 775 775
Gas Tax 0 1,700 0 0 1,300
Total Price $51,185 $62,885 $53,510 $57,560 $68,580
Total Invoice $47,259 $57,978 $49,819 $53,586 $63,925

Return to top

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 Audi A4 / S4 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 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Audi A4 / S4 A4 3.0 Cabriolet
TrueDelta Adjusted Price Difference: $2,515
TrueDelta Adjusted Invoice Difference: $2,732
Model Year20062006200620062006
ModelA4 / S4A4 / S4SLKSLKSLK
TrimA4 3.0 CabrioletS4 CabrioletSLK280SLK350SLK55 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine220hp V6340hp V8228hp V6268hp V6355hp V8
TransmissionT5M6M6M6T7
DrivetrainAWDAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)180, 9215, 9380, 11380, 11?, 9
Tire (rear if not all the same)235/45-17235/40-18205/55-16225/45-17225/40-18
Total Price$51,185$62,885$53,510$57,560$68,580
Adjustments for Features-6000-410-410-710
Feature-Adjusted Total Price$50,585$62,885$53,100$57,150$67,870
Cost Above Minimum$0$12,300$0$4,050$14,770
Total Invoice$47,259$57,978$49,819$53,586$63,925
Adjustments for Features-5540-382-382-662
Feature-Adjusted Total Invoice$46,705$57,978$49,437$53,204$63,263
Cost Above Minimum$0$11,273$0$3,767$13,826

Return to top

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

Model Year20062006200620062006
ModelA4 / S4A4 / S4SLKSLKSLK
TrimA4 3.0 CabrioletS4 CabrioletSLK280SLK350SLK55 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000    
6-speed manual $150$150$150 
7-speed manually-shiftable automatic    $1200
AWD$1700$1700   
RWD  $0$0$0
Accessories 
Power rear side windows$200$200   
Remote window/roof operation  $15$15$15
Tilt/telescoping steering wheel, manual$250$250   
Tilt/telescoping steering wheel, power  $350$350$350
Wind blocker$300$300   
Wind blocker, small  $100$100$100
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests$500$500   
Cargo Management 
Rear seat pass-through$100$100   
Ski sack$50$50   
Climate Control 
Rain-sensing wipers  $175$175$175
Residual heat  $50$50$50
Variable intermittent wipers$75$75   
Exterior 
Body kit    $0
Bodyside moldings$75$75   
Power convertible top$4000$4000   
Power retractable hardtop  $6750$6750$6750
Rear spoiler    $200
Infotainment 
CD player  $125$125$125
Navigation system$600$600$600$600 
Satellite radio $200$200$200$200
Surround sound  $250$250 
Telematics service, such as OnStar  $200$200$200
Instruments, Lights, and Mirrors 
Analog clock  $25$25$25
Auto-dimming passenger-side mirror$75$75   
Compass$0$0   
Cornering lights  $50$50$50
Illuminated visor mirror, driver$50$50   
Illuminated visor mirror, passenger$50$50   
Mirror tilt-down in reverse  $25$25$25
Power-folding mirrors$50$50   
Visor mirror, driver  $10$10$10
Visor mirror, passenger  $10$10$10
Seats and Interior Trim 
Aluminum trim    $100
Center armrest(s), second row$50$50   
Leather-wrapped steering wheel$150$150  $150
Manual thigh support length adjuster, driver seat $50   
Memory system, passenger seat  $150$150$150
Power 4-way lumbar adjuster, driver seat$150$150   
Power 4-way lumbar adjuster, passenger seat$150$150   
Synthetic suede inserts in leather seating surfaces    $0
Wood trim$300$300$300$300 
Wood/leather-wrapped steering wheel  $150$150 
Suspension, Wheels, and Tires 
Sport suspension (upgrade)$0   $0
Ultra-sport suspension (upgrade) $0   
Transmission 
Steering-wheel-mounted transmission controls    $100
Total Value of Features$9,875$9,275$9,685$9,685$9,985
Value of Feature Adjustments$600$0$410$410$710
Value of Feature Adjustments-5540-382-382-662

Return to top

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

Model Year20062006
ModelA4 / S4SLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase104.5 in95.7 in
Length180.0 in160.7 in
Width70.0 in70.4 in
Height54.8 in51.0 in
Curb Weight3,683 lb.3,210 lb.
Fuel Capacity16.6 gal.18.5 gal.
Row 1 Headroom38.0 in37.9 in
Row 1 Shoulder Room53.0 in52.2 in
Row 1 Hip Room0.0 in54.6 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 ft36.5 ft3
Cargo Volume,
Maximum
8.99.8 ft3

Return to top

Option Package Details
Audi A4 / S4 A4 3.0 Cabriolet

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100Yes
Xenon HID headlights500Yes
Memory system, driver seat200Yes
Wind blocker300No
Auto-dimming rearview mirror150Yes
Automatic headlights125Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested135076%
Total Not Requested42524%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Universal garage door opener100Yes
Automatic headlights125Yes
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Wind blocker300No
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested85067%
Total Not Requested42533%

Option Package Details
Mercedes-Benz SLK SLK280

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Interior Trim Package
FeatureValueRequested?
Wood trim300Yes
Wood/leather-wrapped steering wheel0No
Total Requested300100%
Total Not Requested00%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Universal garage door opener100Yes
Rain-sensing wipers175No
Variable assist steering (optional)0No
Remote window/roof operation15No
Total Requested30061%
Total Not Requested19039%
Comfort Package
FeatureValueRequested?
Tilt/telescoping steering wheel, power100No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Auto-dimming rearview mirror150Yes
Memory system, driver seat200Yes
Memory system, passenger seat150No
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Auto-dimming driver-side mirror75Yes
Mirror tilt-down in reverse25No
Total Requested102579%
Total Not Requested27521%
Entertainment Package
FeatureValueRequested?
Satellite radio200Yes
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Total Requested20025%
Total Not Requested60075%

Option Package Details
Mercedes-Benz SLK SLK350

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Interior Trim Package
FeatureValueRequested?
Wood trim300Yes
Wood/leather-wrapped steering wheel0No
Total Requested300100%
Total Not Requested00%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Universal garage door opener100Yes
Rain-sensing wipers175No
Variable assist steering (optional)0No
Remote window/roof operation15No
Total Requested30061%
Total Not Requested19039%
Comfort Package
FeatureValueRequested?
Tilt/telescoping steering wheel, power100No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Auto-dimming rearview mirror150Yes
Memory system, driver seat200Yes
Memory system, passenger seat150No
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Auto-dimming driver-side mirror75Yes
Mirror tilt-down in reverse25No
Total Requested102579%
Total Not Requested27521%
Entertainment Package
FeatureValueRequested?
Satellite radio200Yes
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Total Requested20025%
Total Not Requested60075%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Universal garage door opener100Yes
Rain-sensing wipers175No
Total Requested30063%
Total Not Requested17537%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.