Porsche 911 Porsche 911 2008 Mercedes-Benz SL Mercedes-Benz SL 2011

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Porsche 911 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.

Porsche 911 vs. Mercedes-Benz SL Invoice Comparison

Lowest Total Price: $110,695

Porsche 911 Carrera S   
Difference: $92,230

Lowest Total Invoice: $96,446

Porsche 911 Carrera S   
Difference: $92,518

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082011
Model911SL
TrimCarrera SSL65 AMG
Body2dr Convertible2dr Hardtop conv.
Base Price $94,100 $198,750
Base Invoice $82,209 $184,838
Adaptive Sports Seats 3,055  
Auto-dimming rearview mirror 385  
Metallic paint (extra cost) 690  
Obstacle detection, rear 530  
Synthetic suede steering wheel 1,105  
Navigation system 2,110  
Upholstered instrument panel, leather 3,005  
Bluetooth cell phone link 960  
Audio controls on steering wheel 990  
Floor mats 140  
Heated front seats 500  
Wood trim 890 0
Illuminated door sill trim plates 725 700
CD changer, remote 650  
Adaptive Sports Seats 2,597  
Auto-dimming rearview mirror 327  
Metallic paint (extra cost) 587  
Obstacle detection, rear 451  
Synthetic suede steering wheel 939  
Navigation system 1,794  
Upholstered instrument panel, leather 2,554  
Bluetooth cell phone link 816  
Audio controls on steering wheel 842  
Floor mats 119  
Heated front seats 425  
Wood trim 757 0
Illuminated door sill trim plates 616 651
CD changer, remote 553  
Options (change) 15,735 700
Options (change) 13,377 651
Destination 860 875
Gas Tax 0 2,600
Total Price $110,695 $202,925
Total Invoice $96,446 $188,964

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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: Porsche 911 vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Porsche 911 Carrera S
TrueDelta Adjusted Price Difference: $81,555
TrueDelta Adjusted Invoice Difference: $82,577
Model Year20082011
Model911SL
TrimCarrera SSL65 AMG
Body2dr Convertible2dr Hardtop conv.
Engine355hp H6604hp V12
TransmissionM6T5
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)16/23 MPG11/18 MPG
Audio (watts, speakers)235, 9510, 10
Tire (rear if not all the same)235/35-19255/35-19
Total Price$110,695$202,925
Adjustments for Features0-10,675
Feature-Adjusted Total Price$110,695$192,250
Total Invoice$96,446$188,964
Adjustments for Features0-9,941
Feature-Adjusted Total Invoice$96,446$179,023

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Features Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20082011
Model911SL
TrimCarrera SSL65 AMG
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150 
5-speed manually-shiftable automatic $1000
RWD$0$0
Accessories 
Power trunk closer $350
Proximity key $250
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Wind blocker$300 
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Knee airbag, driver $75
Obstacle detection, front $150
Temporary spare tire $150
Cargo Management 
Air-conditioned storage compartment $50
Storage compartment under front seat(s) $50
Climate Control 
Automatic air recirculation $100
Dual-zone climate control $125
Residual heat $50
Water-repellent front-door glass$15 
Wiper de-icer $25
Engine / Motor 
Rear-engine configuration$0 
Exterior 
Body kit $0
Glass roof panel(s) $300
Power convertible top$4000 
Power retractable hardtop $6750
Retractable rear spoiler$400 
Infotainment 
Aux input $50
CD changer, in-dash $325
CD changer, remote$200 
CD player$125 
DVD-compatible player $0
HD radio $50
iPod integration $100
Media drive $15
Off-road navigation system$0 
Satellite radio $200
SD Card slot $25
Surround sound $250
Telematics service, such as OnStar $200
Traffic information $25
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Cornering lights $50
Fog light, rear $100
Mirror tilt-down in reverse $25
Steering-linked headlights $150
Turn signals on or near mirrors $25
Seats and Interior Trim 
Cooled or ventilated front seats $300
Folding second row seats$300 
Massage, driver seat $100
Massage, passenger seat $100
Memory system, passenger seat $150
Neck-level heating, front seats $150
No leather in second row $-300
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Power thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Synthetic suede headliner $650
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Adaptive hydraulic struts, auto-leveling and ht. adjustable $4000
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$6,440$17,115
Value of Feature Adjustments$0$10,675
Value of Feature Adjustments0-9,941

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Specifications Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20082011
Model911SL
Body2dr Convertible2dr Hardtop conv.
Wheelbase92.5 in100.8 in
Length175.6 in180.4 in
Width71.2 in71.5 in
Height51.6 in51.1 in
Curb Weight3,341 lb.4,564 lb.
Fuel Capacity17.0 gal.21.1 gal.
Row 1 Headroom38.0 in37.7 in
Row 1 Shoulder Room51.7 in54.0 in
Row 1 Hip Room53.4 in53.9 in
Row 1 Legroom41.6 in42.9 in
Row 2 Headroom31.5 in0.0 in
Cargo Volume,
Minimum
4.8 ft37.2 ft3
Cargo Volume,
Maximum
4.810.2 ft3

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Option Package Details
Porsche 911 Carrera S

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested130087%
Total Not Requested20013%

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