Mercedes-Benz SL Mercedes-Benz SL 2008 Audi A8 / S8 Audi A8 / S8 2009

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Mercedes-Benz SL vs. Audi A8 / S8 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 A8 / S8 Invoice Comparison

Lowest Total Price: $102,805

Mercedes-Benz SL SL550   
Difference: $1,220

Lowest Total Invoice: $95,761

Mercedes-Benz SL SL550   
Difference: $1,187

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082008200820082009
ModelSLSLSLSLA8 / S8
TrimSL550SL600SL55 AMGSL65 AMGS8
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.4dr Sedan
Base Price $95,300 $133,200 $129,300 $187,200 $96,200
Base Invoice $88,629 $123,876 $120,249 $174,096 $89,465
Premium I Package 3,170        
Obstacle detection, rear 1,130 1,130 1,130 1,130  
Power trunk closer 520   520    
Voice control for nav and audio 510 510 510 510  
Wood trim     0 0  
Upholstered instrument panel, leather         4,900
Premium I Package 2,948        
Obstacle detection, rear 1,051 1,051 1,051 1,051  
Power trunk closer 484   484    
Voice control for nav and audio 474 474 474 474  
Wood trim     0 0  
Upholstered instrument panel, leather         4,558
Options (change) 5,330 1,640 2,160 1,640 4,900
Options (change) 4,957 1,525 2,009 1,525 4,558
Destination 875 875 875 875 825
Gas Tax 1,300 2,600 2,600 2,600 2,100
Total Price $102,805 $138,315 $134,935 $192,315 $104,025
Total Invoice $95,761 $128,876 $125,733 $179,096 $96,948

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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 Mercedes-Benz SL dealer quotes or Audi A8 / S8 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Mercedes-Benz SL vs. Audi A8 / S8

Lowest Adjusted Price and Invoice: Mercedes-Benz SL SL550
TrueDelta Adjusted Price Difference: $6,045
TrueDelta Adjusted Invoice Difference: $5,681
Model Year20082008200820082009
ModelSLSLSLSLA8 / S8
TrimSL550SL600SL55 AMGSL65 AMGS8
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.4dr Sedan
Engine382hp V8510hp V12510hp V8604hp V12450hp V10
TransmissionT7T5T5T5T6
DrivetrainRWDRWDRWDRWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)250, 8250, 8250, 8250, 8200, 12
Tire (rear if not all the same)255/40-18255/40-18255/35-19255/35-19265/35-20
Total Price$102,805$138,315$134,935$192,315$104,025
Adjustments for Features-4,825-5,275-4,775-5,3750
Feature-Adjusted Total Price$97,980$133,040$130,160$186,940$104,025
Cost Above Minimum$0$35,060$32,180$88,960$0
Total Invoice$95,761$128,876$125,733$179,096$96,948
Adjustments for Features-4,494-4,915-4,449-5,0060
Feature-Adjusted Total Invoice$91,267$123,961$121,284$174,090$96,948
Cost Above Minimum$0$32,694$30,017$82,823$0

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Features Comparison: Mercedes-Benz SL vs. Audi A8 / S8

Model Year20082008200820082009
ModelSLSLSLSLA8 / S8
TrimSL550SL600SL55 AMGSL65 AMGS8
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.4dr Sedan
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200    
5-speed manually-shiftable automatic $1000$1000$1000 
6-speed manually-shiftable automatic    $1100
RWD$0$0$0$0 
AWD    $1700
Accessories 
Power door closers    $300
Power rear side windows    $200
Proximity key$250$250 $250$250
Sunshade, rear, power    $225
Sunshades, second row    $125
Wind blocker, small$100$100$100$100 
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests$500$500$500$500 
Full-size spare tire    $225
Knee airbag, passenger    $75
Rear side airbags    $300
Rearview camera    $200
Side curtain airbags    $350
Temporary spare tire$150$150$150$150 
Cargo Management 
Air-conditioned storage compartment$50$50$50$50 
Storage compartment under front seat(s)$50$50$50$50 
Climate Control 
Rear air vents    $100
Wiper de-icer$25$25$25$25 
Exterior 
Body kit  $0$0 
Bodyside moldings    $75
Power retractable hardtop$6750$6750$6750$6750 
Sunroof    $900
Infotainment 
CD player$125$125$125$125 
iPod integration    $100
MP3-compatible player$50$50$50$50 
Telematics service, such as OnStar$200$200$200$200 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror    $75
Cornering lights$50$50 $50$50
Power-folding mirrors    $50
Steering-linked headlights    $150
Seats and Interior Trim 
Center armrest(s), second row    $50
Cooled or ventilated front seats$300$300 $300 
Leather-wrapped steering wheel$150   $150
Metal pedals$75$75$75$75 
No leather in second row$-300$-300$-300$-300 
Power seatback bolsters, driver seat$100$100$100$100 
Power seatback bolsters, passenger seat$100$100$100$100 
Power upper seatback recliner, driver seat    $100
Power upper seatback recliner, passenger seat    $100
Synthetic suede headliner $650$650$650$650
Synthetic suede steering wheel  $150$150 
Wood/leather-wrapped steering wheel $150   
Suspension, Wheels, and Tires 
Adaptive dampers - electrical    $500
Adaptive hydraulic struts, auto-leveling and ht. adjustable$4000$4000$4000$4000 
Air suspension, auto-leveling and height adjustable    $1000
Sport suspension (upgrade)  $0$0$0
Transmission 
Steering-wheel-mounted transmission controls  $100$100 
Total Value of Features$13,925$14,375$13,875$14,475$9,100
Value of Feature Adjustments$4,825$5,275$4,775$5,375$0
Value of Feature Adjustments-4,494-4,915-4,449-5,0060

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Specifications Comparison: Mercedes-Benz SL vs. Audi A8 / S8

Model Year20082009
ModelSLA8 / S8
Body2dr Hardtop conv.4dr Sedan
Wheelbase100.8 in115.9 in
Length178.5 in199.3 in
Width71.5 in74.6 in
Height51.0 in56.9 in
Curb Weight4,221 lb.4,289 lb.
Fuel Capacity21.1 gal.23.8 gal.
Row 1 Headroom37.7 in37.3 in
Row 1 Shoulder Room54.0 in59.1 in
Row 1 Hip Room53.9 in0.0 in
Row 1 Legroom42.9 in41.4 in
Row 2 Headroom0.0 in38.0 in
Row 2 Shoulder Room0.0 in57.5 in
Row 2 Legroom0.0 in37.6 in
Cargo Volume,
Minimum
7.3 ft314.6 ft3
Cargo Volume,
Maximum
10.2 ft314.6 ft3

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Option Package Details
Mercedes-Benz SL SL550

Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300No
Cornering lights50Yes
Proximity key250Yes
Power 4-way lumbar adjuster, driver seat50Yes
Power seatback bolsters, driver100No
Power 4-way lumbar adjuster, passenger seat50Yes
Power seatback bolsters, passenger seat100No
Front sport buckets100Yes
Total Requested50050%
Total Not Requested50050%

Option Package Details
Audi A8 / S8 S8

Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
Total Not Requested00%

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