Porsche 911 Porsche 911 2009 Mercedes-Benz SL Mercedes-Benz SL 2008

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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: $106,255

Porsche 911 Carrera   
Difference: $86,060

Calculate Payments

  Down Payment Interest Rate Term
Model Year200920092008
Model911911SL
TrimCarreraCarrera SSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Base Price $86,200 $96,800 $187,200
Adaptive Sports Seats 3,055 3,055  
Auto-dimming rearview mirror 420 420  
CD changer, in-dash 650 650  
Adaptive dampers - electrical 1,990    
Metallic paint (extra cost) 710 710  
Cooled or ventilated front seats 800 800  
Heated front seats 500 500  
Synthetic suede steering wheel 1,105 1,105  
Audio controls on steering wheel 870 870  
Floor mats 140 140  
Upholstered instrument panel, leather 3,295 3,295  
Satellite radio 750 750  
Navigation system 2,110 2,110  
Bluetooth cell phone link 695 695  
Wood trim 890 890 0
Voice control for nav and audio 595 595 510
Obstacle detection, rear 530 530 1,130
6-speed manual 0 0  
Adaptive Sports Seats 2,597 2,597  
Auto-dimming rearview mirror 0 0  
CD changer, in-dash 553 553  
Adaptive dampers - electrical 1,692    
Metallic paint (extra cost) 0 0  
Cooled or ventilated front seats 0 0  
Heated front seats 425 425  
Synthetic suede steering wheel 939 939  
Audio controls on steering wheel 0 0  
Floor mats 119 119  
Upholstered instrument panel, leather -306 2,554  
Satellite radio 0 0  
Navigation system 1,794 1,794  
Bluetooth cell phone link 0 0  
Wood trim 757 757 0
Voice control for nav and audio 0 0 474
Obstacle detection, rear 451 451 1,051
6-speed manual 0 0  
Options (change) 19,105 17,115 1,640
Options (change) 9,021 10,189 1,525
Destination 950 950 875
Gas Tax 0 0 2,600
Total Price $106,255 $114,865 $192,315

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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 Porsche 911 dealer quotes or Mercedes-Benz SL dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Porsche 911 vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Porsche 911 Carrera
TrueDelta Adjusted Price Difference: $77,225
TrueDelta Adjusted Invoice Difference: $160,897
Model Year200920092008
Model911911SL
TrimCarreraCarrera SSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Engine345hp H6385hp H6604hp V12
TransmissionM6M6T5
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)16/23 MPG16/23 MPG11/18 MPG
Audio (watts, speakers)235, 9235, 9250, 8
Tire (rear if not all the same)235/40-18235/35-19255/35-19
Total Price$106,255$114,865$192,315
Adjustments for Features00-8,835
Feature-Adjusted Total Price$106,255$114,865$183,480
Cost Above Minimum$0$8,610$0

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Features Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year200920092008
Model911911SL
TrimCarreraCarrera SSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150$150 
5-speed manually-shiftable automatic  $1000
RWD$0$0$0
Accessories 
Power trunk closer  $350
Proximity key  $250
Tilt/telescoping steering wheel, manual$250$250 
Tilt/telescoping steering wheel, power  $350
Wind blocker$300$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$15 
Wiper de-icer  $25
Engine / Motor 
Rear-engine configuration$0$0 
Exterior 
Body kit  $0
Power convertible top$4000$4000 
Power retractable hardtop  $6750
Retractable rear spoiler$400$400 
Infotainment 
CD changer, in-dash$325$325 
CD changer, remote  $200
CD player  $125
DVD-Audio-compatible player$0$0 
Off-road navigation system$0$0 
Surround sound  $250
Telematics service, such as OnStar  $200
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75 
Cornering lights  $50
Mirror tilt-down in reverse  $25
Turn signals on or near mirrors  $25
Seats and Interior Trim 
Folding second row seats$300$300 
Memory system, passenger seat  $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$100 
Power thigh bolsters, passenger seat$100$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$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$6,515$6,515$15,350
Value of Feature Adjustments$0$0$8,835
Value of Feature Adjustments00-8,228

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Specifications Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20092008
Model911SL
Body2dr Convertible2dr Hardtop conv.
Wheelbase92.5 in100.8 in
Length175.6 in178.5 in
Width71.2 in71.5 in
Height51.6 in51.0 in
Curb Weight3,363 lb.4,564 lb.
Fuel Capacity16.9 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
4.4 ft37.3 ft3
Cargo Volume,
Maximum
4.410.2 ft3

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Option Package Details
Porsche 911 Carrera

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%

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%

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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