Mercedes-Benz SL Mercedes-Benz SL 2008 Audi A8 Audi A8 2011

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Mercedes-Benz SL vs. Audi A8 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 Invoice Comparison

Lowest Total Price: $88,525

Audi A8 A8   
Difference: $16,480

Lowest Total Invoice: $82,392

Audi A8 A8   
Difference: $15,415

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082008200820082011
ModelSLSLSLSLA8
TrimSL550SL600SL55 AMGSL65 AMGA8
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.4dr Sedan
Base Price $95,300 $133,200 $129,300 $187,200 $78,050
Base Invoice $88,629 $123,876 $120,249 $174,096 $72,587
Premium I Package 3,170   2,500    
Obstacle detection, rear 1,130 1,130 1,130 1,130  
Voice control for nav and audio 510 510 510 510  
Power trunk closer 520   520    
Adaptive cruise control 2,200 2,200 2,200 2,200  
Wood trim     0 0  
Premium Package         2,000
Convenience Package         2,350
Driver Assistance Package         3,000
Synthetic suede headliner         1,500
Leather door panel trim         750
Premium I Package 2,948   2,325    
Obstacle detection, rear 1,051 1,051 1,051 1,051  
Voice control for nav and audio 474 474 474 474  
Power trunk closer 484   484    
Adaptive cruise control 2,046 2,046 2,046 2,046  
Wood trim     0 0  
Premium Package         1,860
Convenience Package         2,185
Driver Assistance Package         2,790
Synthetic suede headliner         1,396
Leather door panel trim         699
Options (change) 7,530 3,840 6,860 3,840 9,600
Options (change) 7,003 3,571 6,380 3,571 8,930
Destination 875 875 875 875 875
Gas Tax 1,300 2,600 2,600 2,600 0
Total Price $105,005 $140,515 $139,635 $194,515 $88,525
Total Invoice $97,807 $130,922 $130,104 $181,142 $82,392

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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 dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Audi A8 A8
TrueDelta Adjusted Price Difference: $13,345
TrueDelta Adjusted Invoice Difference: $12,495
Model Year20082008200820082011
ModelSLSLSLSLA8
TrimSL550SL600SL55 AMGSL65 AMGA8
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.4dr Sedan
Engine382hp V8510hp V12510hp V8604hp V12372hp V8
TransmissionT7T5T5T5T8
DrivetrainRWDRWDRWDRWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)250, 8250, 8250, 8250, 8630, 14
Tire (rear if not all the same)255/40-18255/40-18255/35-19255/35-19255/45-19
Total Price$105,005$140,515$139,635$194,515$88,525
Adjustments for Features-3,135-3,585-3,685-3,6850
Feature-Adjusted Total Price$101,870$136,930$135,950$190,830$88,525
Cost Above Minimum$0$35,060$34,080$88,960$0
Total Invoice$97,807$130,922$130,104$181,142$82,392
Adjustments for Features-2,920-3,340-3,433-3,4320
Feature-Adjusted Total Invoice$94,887$127,582$126,671$177,710$82,392
Cost Above Minimum$0$32,695$31,784$82,823$0

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Features Comparison: Mercedes-Benz SL vs. Audi A8

Model Year20082008200820082011
ModelSLSLSLSLA8
TrimSL550SL600SL55 AMGSL65 AMGA8
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 
8-speed manually-shiftable automatic    $1300
RWD$0$0$0$0 
AWD    $1700
Accessories 
Adaptive cruise control$600$600$600$600 
Adaptive cruise control, all-speed    $850
Power rear side windows    $200
Sunshade, rear, power    $225
Wind blocker, small$100$100$100$100 
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests$500$500$500$500 
Automatic braking, low-speed    $200
Blind spot warning system    $200
Forward collision warning    $200
Full-size spare tire    $225
Knee airbag, passenger    $75
Lane departure warning    $200
Radar- or camera-based collision preparation system    $0
Rear side airbags    $300
Rearview camera    $200
Rollover sensor    $50
Side curtain airbags    $350
Temporary spare tire$150$150$150$150 
Cargo Management 
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 
Power retractable hardtop$6750$6750$6750$6750 
Sunroof    $900
Infotainment 
Aux input    $50
Bluetooth audio streaming    $25
CD changer, remote$200$200$200$200 
DVD-compatible player    $0
Handwriting recognition    $200
HD radio    $50
Media drive    $15
SD Card slot    $25
Telematics service, such as OnStar$200$200$200$200 
Traffic information    $25
USB port    $25
Instruments, Lights, and Mirrors 
Analog clock    $25
Auto-dimming passenger-side mirror    $75
Power-folding mirrors    $50
Steering-linked headlights    $150
Seats and Interior Trim 
Center armrest(s), second row    $50
Leather-wrapped steering wheel$150   $150
Massage, driver seat    $100
Massage, passenger seat    $100
Metal pedals$75$75$75$75 
No leather in second row$-300$-300$-300$-300 
Power seat belt height adjusters, front row    $25
Power thigh bolsters, driver seat    $100
Power thigh bolsters, passenger seat    $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 
Upholstered instrument panel    $300
Upholstered instrument panel, leather$1000$1000$1000$1000 
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
Electronic systems calibration selector    $200
Sport suspension (upgrade)  $0$0 
Transmission 
Steering-wheel-mounted transmission controls  $100$100$100
Total Value of Features$14,700$15,150$15,250$15,250$11,565
Value of Feature Adjustments$3,135$3,585$3,685$3,685$0
Value of Feature Adjustments-2,920-3,340-3,433-3,4320

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Specifications Comparison: Mercedes-Benz SL vs. Audi A8

Model Year20082011
ModelSLA8
Body2dr Hardtop conv.4dr Sedan
Wheelbase100.8 in117.8 in
Length178.5 in202.2 in
Width71.5 in76.7 in
Height51.0 in57.5 in
Curb Weight4,221 lb.4,410 lb.
Fuel Capacity21.1 gal.23.8 gal.
Row 1 Headroom37.7 in37.2 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 in38.1 in
Row 2 Shoulder Room0.0 in57.8 in
Row 2 Legroom0.0 in38.7 in
Cargo Volume,
Minimum
7.3 ft313.2 ft3
Cargo Volume,
Maximum
10.2 ft313.2 ft3

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Option Package Details
Mercedes-Benz SL SL550

Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Cornering lights50Yes
Proximity key250Yes
Power 4-way lumbar adjuster, driver seat50Yes
Power seatback bolsters, driver100Yes
Power 4-way lumbar adjuster, passenger seat50Yes
Power seatback bolsters, passenger seat100Yes
Front sport buckets100No
Total Requested90090%
Total Not Requested10010%

Option Package Details
Mercedes-Benz SL SL55 AMG

Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Cornering lights50Yes
Proximity key250Yes
Total Requested600100%
Total Not Requested00%

Option Package Details
Audi A8 A8

Premium Package
FeatureValueRequested?
Wood trim, expanded coverage0No
Cooled or ventilated front seats300Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Massage, driver seat100No
Massage, passenger seat100No
Total Requested50056%
Total Not Requested40044%
Convenience Package
FeatureValueRequested?
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Rearview camera200No
Power decklid350Yes
Proximity key250Yes
Total Requested100083%
Total Not Requested20017%
Driver Assistance Package
FeatureValueRequested?
Radar- or camera-based collision preparation system0No
Lane departure warning system200No
Steering-wheel-mounted transmission controls100Yes
Adaptive cruise control, all-speed700No
Blind spot warning system200No
Automatic braking, low-speed200No
Forward collision alert200No
Total Requested1006%
Total Not Requested150094%

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