Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2008 Mercedes-Benz SL Mercedes-Benz SL 2008

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

Lowest Total Price: $56,100

Audi A4 / S4 / RS4 A4 3.2 Cabriolet   
Difference: $42,505

Lowest Total Invoice: $52,232

Audi A4 / S4 / RS4 A4 3.2 Cabriolet   
Difference: $39,623

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820082008200820082008
ModelA4 / S4 / RS4A4 / S4 / RS4SLSLSLSL
TrimA4 3.2 CabrioletS4 CabrioletSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $47,900 $56,775 $95,300 $133,200 $129,300 $187,200
Base Invoice $44,548 $52,801 $88,629 $123,876 $120,249 $174,096
Upgraded leather upholstery 1,000          
Convenience Package 1,800 2,625        
Metallic paint (extra cost) 475 475        
Heated front seats 450          
Navigation system 2,100 1,950        
Bluetooth cell phone link 500          
Obstacle detection, rear 350 350 1,130 1,130 1,130 1,130
Front sport buckets 500          
Sport suspension (upgrade) 250          
Wood trim   400     0 0
Upgraded leather upholstery 930          
Convenience Package 1,675 2,442        
Metallic paint (extra cost) 443 443        
Heated front seats 418          
Navigation system 1,953 1,813        
Bluetooth cell phone link 466          
Obstacle detection, rear 325 325 1,051 1,051 1,051 1,051
Front sport buckets 466          
Sport suspension (upgrade) 233          
Wood trim   373     0 0
Options (change) 7,425 5,800 1,130 1,130 1,130 1,130
Options (change) 6,909 5,396 1,051 1,051 1,051 1,051
Destination 775 775 875 875 875 875
Gas Tax 0 1,700 1,300 2,600 2,600 2,600
Total Price $56,100 $65,050 $98,605 $137,805 $133,905 $191,805
Total Invoice $52,232 $60,672 $91,855 $128,402 $124,775 $178,622

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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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TrueDelta Value Comparison: Audi A4 / S4 / RS4 vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Audi A4 / S4 / RS4 A4 3.2 Cabriolet
TrueDelta Adjusted Price Difference: $36,165
TrueDelta Adjusted Invoice Difference: $33,717
Model Year200820082008200820082008
ModelA4 / S4 / RS4A4 / S4 / RS4SLSLSLSL
TrimA4 3.2 CabrioletS4 CabrioletSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine255hp V6340hp V8382hp V8510hp V12510hp V8604hp V12
TransmissionT6M6T7T5T5T5
DrivetrainAWDAWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)180, 9215, 9250, 8250, 8250, 8250, 8
Tire (rear if not all the same)235/45-17235/40-18255/40-18255/40-18255/35-19255/35-19
Total Price$56,100$65,050$98,605$137,805$133,905$191,805
Adjustments for Features-1,0500-7,390-9,090-8,240-9,190
Feature-Adjusted Total Price$55,050$65,050$91,215$128,715$125,665$182,615
Cost Above Minimum$0$10,000$0$37,500$34,450$91,400
Total Invoice$52,232$60,672$91,855$128,402$124,775$178,622
Adjustments for Features-9780-6,884-8,470-7,678-8,558
Feature-Adjusted Total Invoice$51,254$60,672$84,971$119,932$117,097$170,064
Cost Above Minimum$0$9,418$0$34,961$32,126$85,093

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

Model Year200820082008200820082008
ModelA4 / S4 / RS4A4 / S4 / RS4SLSLSLSL
TrimA4 3.2 CabrioletS4 CabrioletSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100     
6-speed manual $150    
7-speed manually-shiftable automatic  $1200   
5-speed manually-shiftable automatic   $1000$1000$1000
AWD$1700$1700    
RWD  $0$0$0$0
Accessories 
Power rear side windows$200$200    
Power trunk closer   $350 $350
Proximity key   $250 $250
Remote window/roof operation  $15$15$15$15
Tilt/telescoping steering wheel, manual$250$250    
Tilt/telescoping steering wheel, power  $350$350$350$350
Wind blocker$300$300    
Wind blocker, small  $100$100$100$100
Brakes, Airbags, and Other Safety 
Full-size spare tire$225$225    
Knee airbag, passenger$75$75    
Obstacle detection, front  $150$150$150$150
Temporary spare tire  $150$150$150$150
Cargo Management 
Air-conditioned storage compartment  $50$50$50$50
Rear seat pass-through$100$100    
Ski sack$50$50    
Climate Control 
Residual heat  $50$50$50$50
Wiper de-icer  $25$25$25$25
Exterior 
Body kit    $0$0
Bodyside moldings$75$75    
Power convertible top$4000$4000    
Power retractable hardtop  $6750$6750$6750$6750
Infotainment 
CD player  $125$125$125$125
Satellite radio $200$200$200$200$200
SD Card slot$25$25    
Surround sound  $250$250$250$250
Telematics service, such as OnStar  $200$200$200$200
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75    
Compass$0$0    
Cornering lights   $50 $50
Mirror tilt-down in reverse  $25$25$25$25
Power-folding mirrors$50$50    
Steering-linked headlights$150$150    
Seats and Interior Trim 
Center armrest(s), second row$50$50    
Cooled or ventilated front seats   $300 $300
Leather-wrapped steering wheel$150$150$150   
Manual height adjuster, driver seat $50    
Manual thigh support length adjuster, driver seat $50    
Memory system, passenger seat  $150$150$150$150
Metal pedals  $75$75$75$75
No leather in second row  $-300$-300$-300$-300
Power 4-way lumbar adjuster, driver seat$150$150 $150$150$150
Power 4-way lumbar adjuster, passenger seat$150$150 $150$150$150
Power fore-aft adjuster, driver seat$100 $100$100$100$100
Power headrest height adjuster, driver seat  $50$50$50$50
Power headrest height adjuster, passenger seat  $50$50$50$50
Power height adjuster, driver seat$100 $100$100$100$100
Power lumbar adjuster, driver seat  $100   
Power lumbar adjuster, passenger seat  $100   
Power recliner, driver seat$100 $100$100$100$100
Power seatback bolsters, driver seat   $100$100$100
Power seatback bolsters, passenger seat   $100$100$100
Power thigh support length adjuster, driver seat  $100$100$100$100
Power thigh support length adjuster, passenger seat  $100$100$100$100
Power tilt adjuster, driver seat$100 $100$100$100$100
Synthetic suede headliner   $650$650$650
Synthetic suede steering wheel    $150$150
Upholstered instrument panel, leather  $1000$1000$1000$1000
Wood/leather-wrapped steering wheel   $150  
Suspension, Wheels, and Tires 
Adaptive hydraulic struts, auto-leveling and ht. adjustable  $4000$4000$4000$4000
Sport suspension (upgrade)$0   $0$0
Ultra-sport suspension (upgrade) $0    
Transmission 
Steering-wheel-mounted transmission controls    $100$100
Total Value of Features$9,275$8,225$15,615$17,315$16,465$17,415
Value of Feature Adjustments$1,050$0$7,390$9,090$8,240$9,190
Value of Feature Adjustments-9780-6,884-8,470-7,678-8,558

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

Model Year20082008
ModelA4 / S4 / RS4SL
Body2dr Convertible2dr Hardtop conv.
Wheelbase104.3 in100.8 in
Length180.0 in178.5 in
Width70.0 in71.5 in
Height54.8 in51.0 in
Curb Weight3,859 lb.4,221 lb.
Fuel Capacity16.6 gal.21.1 gal.
Row 1 Headroom38.0 in37.7 in
Row 1 Shoulder Room53.0 in54.0 in
Row 1 Hip Room0.0 in53.9 in
Row 1 Legroom41.3 in42.9 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 ft37.3 ft3
Cargo Volume,
Maximum
8.910.2 ft3

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Option Package Details
Audi A4 / S4 / RS4 A4 3.2 Cabriolet

Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125Yes
Steering-linked headlights150No
Xenon HID headlights500Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested125082%
Total Not Requested27518%

Option Package Details
Audi A4 / S4 / RS4 S4 Cabriolet

Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Bluetooth cell phone link100Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75No
Total Requested85058%
Total Not Requested62542%

Option Package Details
Mercedes-Benz SL SL550

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

Option Package Details
Mercedes-Benz SL SL600

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

Option Package Details
Mercedes-Benz SL SL55 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

Option Package Details
Mercedes-Benz SL SL65 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

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