Mercedes-Benz SL Mercedes-Benz SL 2008 Audi A4 / S4 Audi A4 / S4 2009

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

Lowest Total Price: $56,050

Audi A4 / S4 A4 3.2 Cabriolet   
Difference: $42,555

Lowest Total Invoice: $52,187

Audi A4 / S4 A4 3.2 Cabriolet   
Difference: $39,668

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820082008200820092009
ModelSLSLSLSLA4 / S4A4 / S4
TrimSL550SL600SL55 AMGSL65 AMGA4 3.2 CabrioletS4 Cabriolet
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Convertible2dr Convertible
Base Price $95,300 $133,200 $129,300 $187,200 $48,800 $57,125
Base Invoice $88,629 $123,876 $120,249 $174,096 $45,385 $53,127
Obstacle detection, rear 1,130 1,130 1,130 1,130 350 350
Wood trim     0 0   400
Convenience Package         1,550 2,275
Upgraded leather upholstery         1,000  
Metallic paint (extra cost)         475 475
Heated front seats         450  
Navigation system         2,100 1,950
Front sport buckets         500  
Obstacle detection, rear 1,051 1,051 1,051 1,051 325 325
Wood trim     0 0   373
Convenience Package         1,442 2,115
Upgraded leather upholstery         930  
Metallic paint (extra cost)         443 443
Heated front seats         418  
Navigation system         1,953 1,813
Front sport buckets         466  
Options (change) 1,130 1,130 1,130 1,130 6,425 5,450
Options (change) 1,051 1,051 1,051 1,051 5,977 5,069
Destination 875 875 875 875 825 825
Gas Tax 1,300 2,600 2,600 2,600 0 1,700
Total Price $98,605 $137,805 $133,905 $191,805 $56,050 $65,100
Total Invoice $91,855 $128,402 $124,775 $178,622 $52,187 $60,721

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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: Mercedes-Benz SL vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Audi A4 / S4 A4 3.2 Cabriolet
TrueDelta Adjusted Price Difference: $36,690
TrueDelta Adjusted Invoice Difference: $34,204
Model Year200820082008200820092009
ModelSLSLSLSLA4 / S4A4 / S4
TrimSL550SL600SL55 AMGSL65 AMGA4 3.2 CabrioletS4 Cabriolet
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Convertible2dr Convertible
Engine382hp V8510hp V12510hp V8604hp V12255hp V6340hp V8
TransmissionT7T5T5T5T6M6
DrivetrainRWDRWDRWDRWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)250, 8250, 8250, 8250, 8180, 9215, 9
Tire (rear if not all the same)255/40-18255/40-18255/35-19255/35-19235/40-18235/40-18
Total Price$98,605$137,805$133,905$191,805$56,050$65,100
Adjustments for Features-7,415-9,115-8,265-9,215-1,5500
Feature-Adjusted Total Price$91,190$128,690$125,640$182,590$54,500$65,100
Cost Above Minimum$0$37,500$34,450$91,400$0$10,600
Total Invoice$91,855$128,402$124,775$178,622$52,187$60,721
Adjustments for Features-6,907-8,493-7,701-8,582-1,4430
Feature-Adjusted Total Invoice$84,948$119,909$117,074$170,040$50,744$60,721
Cost Above Minimum$0$34,961$32,126$85,092$0$9,977

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

Model Year200820082008200820092009
ModelSLSLSLSLA4 / S4A4 / S4
TrimSL550SL600SL55 AMGSL65 AMGA4 3.2 CabrioletS4 Cabriolet
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Convertible2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200     
5-speed manually-shiftable automatic $1000$1000$1000  
6-speed manually-shiftable automatic    $1100 
6-speed manual     $150
RWD$0$0$0$0  
AWD    $1700$1700
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 
Bluetooth cell phone link$100$100$100$100$100 
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  
Steering-linked headlights    $150$150
Seats and Interior Trim 
Aluminum trim    $100 
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$100 
Total Value of Features$15,390$17,090$16,240$17,190$9,525$7,975
Value of Feature Adjustments$7,415$9,115$8,265$9,215$1,550$0
Value of Feature Adjustments-6,907-8,493-7,701-8,582-1,4430

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

Model Year20082009
ModelSLA4 / S4
Body2dr Hardtop conv.2dr Convertible
Wheelbase100.8 in104.3 in
Length178.5 in180.0 in
Width71.5 in70.0 in
Height51.0 in54.8 in
Curb Weight4,221 lb.3,859 lb.
Fuel Capacity21.1 gal.16.6 gal.
Row 1 Headroom37.7 in38.0 in
Row 1 Shoulder Room54.0 in53.0 in
Row 1 Hip Room53.9 in0.0 in
Row 1 Legroom42.9 in41.3 in
Row 2 Headroom0.0 in36.3 in
Row 2 Shoulder Room0.0 in45.1 in
Row 2 Legroom0.0 in32.4 in
Cargo Volume,
Minimum
7.3 ft38.9 ft3
Cargo Volume,
Maximum
10.2 ft38.9 ft3

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Option Package Details
Audi A4 / S4 A4 3.2 Cabriolet

Upgraded leather upholstery
FeatureValueRequested?
Upgraded leather upholstery0No
Leather upholstery, extended coverage0No
Upholstered door panels, leather250Yes
Total Requested250100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote-125Yes
SD Card slot25No
Total Requested47595%
Total Not Requested255%
Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Aluminum trim100No
Steering-wheel-mounted transmission controls100Yes
235/40HR18 tires400No
Total Requested35041%
Total Not Requested50059%
Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Automatic headlights125Yes
Steering-linked headlights150No
Xenon HID headlights500Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Total Requested125085%
Total Not Requested22515%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote200Yes
SD Card slot25No
Total Requested80097%
Total Not Requested253%
Convenience Package
FeatureValueRequested?
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Automatic headlights125Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Total Requested75057%
Total Not Requested57543%

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