Porsche 911 Porsche 911 2012 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: $102,285

Mercedes-Benz SL SL550   
Difference: $5,060

Calculate Payments

  Down Payment Interest Rate Term
Model Year20122012201220122008200820082008
Model911911911911SLSLSLSL
TrimCarreraCarrera STurboTurbo SSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $90,100 $103,000 $149,000 $172,100 $95,300 $133,200 $129,300 $187,200
Adaptive Sports Seats 3,055 3,055 1,145          
Infotainment Package 3,010 3,010            
Auto-dimming rearview mirror 420 420            
CD changer, in-dash 650 650 650          
Adaptive dampers - electrical 2,090              
Metallic paint (extra cost) 710 710            
Upholstered instrument panel, leather 3,295 3,295            
Heated front seats 525 525 525 525        
Audio controls on steering wheel 615 615 0 0        
Voice control for nav and audio 595 595 595 595 510 510 510 510
Obstacle detection, rear 530 530 530 530 1,130 1,130 1,130 1,130
Cooled or ventilated front seats 800 800 800 800        
Satellite radio     750 750        
Synthetic suede steering wheel       1,295        
Premium I Package         3,170      
Wood trim             0 0
Adaptive Sports Seats 2,597 2,597 973          
Infotainment Package 0 0            
Auto-dimming rearview mirror 0 0            
CD changer, in-dash 0 0 0          
Adaptive dampers - electrical 0              
Metallic paint (extra cost) 0 0            
Upholstered instrument panel, leather -306 2,554            
Heated front seats 0 0 0 0        
Audio controls on steering wheel 0 0 0 0        
Voice control for nav and audio 0 0 0 0 474 474 474 474
Obstacle detection, rear 451 451 451 0 1,051 1,051 1,051 1,051
Cooled or ventilated front seats 0 0 0 0        
Satellite radio     0 0        
Synthetic suede steering wheel       0        
Premium I Package         2,948      
Wood trim             0 0
Options (change) 16,295 14,205 4,995 4,495 4,810 1,640 1,640 1,640
Options (change) 2,742 5,602 1,424 0 4,473 1,525 1,525 1,525
Destination 950 950 950 950 875 875 875 875
Gas Tax 0 0 0 0 1,300 2,600 2,600 2,600
Total Price $107,345 $118,155 $154,945 $177,545 $102,285 $138,315 $134,415 $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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TrueDelta Value Comparison: Porsche 911 vs. Mercedes-Benz SL

Lowest Adjusted Price: Mercedes-Benz SL SL550
Lowest Adjusted Invoice: Porsche 911 Turbo S
TrueDelta Adjusted Price Difference: $12,930
TrueDelta Adjusted Invoice Difference: $87,040
Model Year20122012201220122008200820082008
Model911911911911SLSLSLSL
TrimCarreraCarrera STurboTurbo SSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine345hp H6385hp H6500hp H6530hp H6382hp V8510hp V12510hp V8604hp V12
TransmissionM6M6M6S7T7T5T5T5
DrivetrainRWDRWDAWDAWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)385, 13385, 13385, 13385, 13250, 8250, 8250, 8250, 8
Tire (rear if not all the same)235/40-18235/35-19235/35-19235/35-19255/40-18255/40-18255/35-19255/35-19
Total Price$107,345$118,155$154,945$177,545$102,285$138,315$134,415$192,315
Adjustments for Features00-1,850-8,150-7,870-8,670-7,820-8,770
Feature-Adjusted Total Price$107,345$118,155$153,095$169,395$94,415$129,645$126,595$183,545
Cost Above Minimum$0$10,810$45,750$62,050$0$35,230$32,180$89,130

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Features Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20122012201220122008200820082008
Model911911911911SLSLSLSL
TrimCarreraCarrera STurboTurbo SSL550SL600SL55 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150$150$150     
7-speed automated manual   $1200    
7-speed manually-shiftable automatic    $1200   
5-speed manually-shiftable automatic     $1000$1000$1000
RWD$0$0  $0$0$0$0
AWD  $1700$1700    
Accessories 
Power trunk closer     $350 $350
Proximity key    $250$250 $250
Tilt/telescoping steering wheel, manual$250$250$250$250    
Tilt/telescoping steering wheel, power    $350$350$350$350
Wind blocker$300$300$300$300    
Wind blocker, small    $100$100$100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats    $0$0$0$0
Ceramic brake rotors   $4000    
Knee airbag, driver    $75$75$75$75
Obstacle detection, front    $150$150$150$150
Temporary spare tire    $150$150$150$150
Torque vectoring, brake-based   $100    
Cargo Management 
Air-conditioned storage compartment    $50$50$50$50
Storage compartment under front seat(s)    $50$50$50$50
Climate Control 
Automatic air recirculation    $100$100$100$100
Dual-zone climate control    $125$125$125$125
Residual heat    $50$50$50$50
Water-repellent front-door glass$15$15$15$15    
Wiper de-icer    $25$25$25$25
Drivetrain 
Electronically-variable engine mounts (performance-oriented)   $500    
Limited-slip rear differential  $300$300    
Engine / Motor 
Rear-engine configuration$0$0$0$0    
Exterior 
Body kit      $0$0
Larger rear spoiler  $200$200    
Power convertible top$4000$4000$4000$4000    
Power retractable hardtop    $6750$6750$6750$6750
Retractable rear spoiler$400$400      
Infotainment 
Aux input$50$50$50$50    
CD changer, in-dash$325$325$325$325    
CD changer, remote    $200$200$200$200
CD player    $125$125$125$125
DVD-Audio-compatible player$0$0$0$0    
Media drive$15$15$15$15    
Off-road navigation system$0$0$0$0    
Telematics service, such as OnStar    $200$200$200$200
Traffic information$25$25      
USB port$25$25$25$25    
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75$75$75    
Boost gauge  $75$75    
Chronometer   $100    
Cornering lights    $50$50 $50
Mirror tilt-down in reverse    $25$25$25$25
Steering-linked headlights   $150    
Turn signals on or near mirrors    $25$25$25$25
Seats and Interior Trim 
Cooled or ventilated front seats$300$300$300$300$300$300 $300
Folding second row seats$300$300$300$300    
Leather-wrapped steering wheel$150$150$150 $150   
Memory system, passenger seat    $150$150$150$150
No leather in second row    $-300$-300$-300$-300
Power headrest height adjuster, driver seat    $50$50$50$50
Power headrest height adjuster, passenger seat    $50$50$50$50
Power thigh bolsters, driver seat$100$100$100$100    
Power thigh bolsters, passenger seat$100$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
Synthetic suede headliner     $650$650$650
Synthetic suede steering wheel   $150  $150$150
Wood trim    $300$300$300$300
Wood/leather-wrapped steering wheel     $150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500$500$500    
Adaptive hydraulic struts, auto-leveling and ht. adjustable    $4000$4000$4000$4000
Electronic systems calibration selector   $200    
Sport suspension (upgrade)      $0$0
Transmission 
Launch control   $100    
Steering-wheel-mounted transmission controls   $100  $100$100
Total Value of Features$7,080$7,080$8,930$15,230$14,950$15,750$14,900$15,850
Value of Feature Adjustments$0$0$1,850$8,150$7,870$8,670$7,820$8,770
Value of Feature Adjustments00-28-44-7,331-8,078-7,287-8,167

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Specifications Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20122008
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 Weight3,264 lb.4,221 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%
Infotainment Package
FeatureValueRequested?
Satellite radio200Yes
Surround sound250Yes
Traffic information25No
Bose, 385W, 13 speakers (with subwoofer)350No
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Media drive, large15No
USB port25No
Total Requested105072%
Total Not Requested41528%

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%
Infotainment Package
FeatureValueRequested?
Satellite radio200Yes
Surround sound250Yes
Traffic information25No
Bose, 385W, 13 speakers (with subwoofer)350No
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Media drive, large15No
USB port25No
Total Requested105072%
Total Not Requested41528%

Option Package Details
Porsche 911 Turbo

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
Total Requested30060%
Total Not Requested20040%

Option Package Details
Mercedes-Benz SL SL550

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%
Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Cornering lights50No
Proximity key250No
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 buckets100Yes
Total Requested70070%
Total Not Requested30030%

Option Package Details
Mercedes-Benz SL SL600

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

Option Package Details
Mercedes-Benz SL SL55 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

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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