Porsche 911 Porsche 911 2015 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: $134,420

Porsche 911 Carrera S   
Difference: $60,095

Calculate Payments

  Down Payment Interest Rate Term
Model Year201520152008
Model911911SL
TrimCarrera SCarrera GTSSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Base Price $110,800 $126,100 $187,200
Premium Package Plus 2,330 4,470  
7-speed automated manual 4,080 4,840  
Adaptive sport seats plus 3,825    
Bose 555W 12 speakers 2,120 2,120  
Metallic paint (extra cost) 710 710  
Audio controls on steering wheel 615 0  
Upholstered instrument panel, leather 3,490 3,850  
Wood trim 1,990   0
Voice control for nav and audio 595 595 510
Obstacle detection, front 380 380  
Adaptive cruise control, all-speed 2,490 2,490  
Cooled or ventilated front seats   585  
Body kit   750  
Obstacle detection, rear     1,130
Adaptive cruise control     2,200
Premium Package Plus 0 0  
7-speed automated manual 3,468 0  
Adaptive sport seats plus 0    
Bose 555W 12 speakers 0 0  
Metallic paint (extra cost) 0 0  
Audio controls on steering wheel 0 0  
Upholstered instrument panel, leather 0 0  
Wood trim 0   0
Voice control for nav and audio 0 0 474
Obstacle detection, front 0 0  
Adaptive cruise control, all-speed 0 0  
Cooled or ventilated front seats   0  
Body kit   0  
Obstacle detection, rear     1,051
Adaptive cruise control     2,046
Options (change) 22,625 20,790 3,840
Options (change) 3,468 0 3,571
Destination 995 995 875
Gas Tax 0 0 2,600
Total Price $134,420 $147,885 $194,515

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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: Porsche 911 Carrera S
Lowest Adjusted Invoice: Porsche 911 Carrera GTS
TrueDelta Adjusted Price Difference: $55,375
TrueDelta Adjusted Invoice Difference: $175,761
Model Year201520152008
Model911911SL
TrimCarrera SCarrera GTSSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Engine400hp H6430hp H6604hp V12
TransmissionS7S7T5
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)18/26 MPG18/26 MPG11/18 MPG
Audio (watts, speakers)445, 12445, 12250, 8
Tire (rear if not all the same)245/35-20245/35-20255/35-19
Total Price$134,420$147,885$194,515
Adjustments for Features0-1,350-4,720
Feature-Adjusted Total Price$134,420$146,535$189,795
Cost Above Minimum$0$12,115$0

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Features Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year201520152008
Model911911SL
TrimCarrera SCarrera GTSSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200$1200 
5-speed manually-shiftable automatic  $1000
RWD$0$0$0
Accessories 
Adaptive cruise control  $600
Adaptive cruise control, all-speed$850$850 
Power trunk closer  $350
Wind blocker$300$300 
Wind blocker, small  $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats  $0
Automatic braking, high-speed or partial$200$200 
Forward collision warning$200$200 
Knee airbag, passenger$75$75 
Radar- or camera-based collision preparation system$0$0 
Side curtain airbags$350$350 
Temporary spare tire  $150
Torque vectoring, brake-based$100$100 
Cargo Management 
Air-conditioned storage compartment  $50
Storage compartment under front seat(s)  $50
Climate Control 
Water-repellent front-door glass$15$15 
Wiper de-icer  $25
Drivetrain 
Electronically-variable engine mounts (performance-oriented) $500 
Limited-slip rear differential$300$300 
Engine / Motor 
Automatic start / stop$150$150 
Dual-mode exhaust, switchable $500 
Rear-engine configuration$0$0 
Regenerative braking$0$0 
Exterior 
Black exterior trim (optional) $0 
Body kit $0$0
Painted brake calipers (optional)$0$0 
Power convertible top$4000$4000 
Power retractable hardtop  $6750
Retractable rear spoiler$400$400 
Infotainment 
App support$0$0 
Aux input$50$50 
Bluetooth audio streaming$25$25 
CD changer, in-dash$325$325 
CD changer, remote  $200
CD player  $125
DVD-Audio-compatible player$0$0 
HD radio$50$50 
Media drive$15$15 
Off-road navigation system$0$0 
Telematics service, such as OnStar  $200
Traffic information$25$25 
USB port$25$25 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75 
Chronometer $100 
Fog lights  $125
Mirror tilt-down in reverse  $25
Performance meter $150 
Steering-linked headlights$150$150 
Turn signals on or near mirrors  $25
Seats and Interior Trim 
Aluminum trim $100 
Folding second row seats w/o opening to trunk$75$75 
Leather door panel trim$250 $250
Leather-wrapped steering wheel$150$150 
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 
Synthetic suede door panel trim $250 
Synthetic suede headliner  $650
Synthetic suede steering wheel  $150
Wood trim$300 $300
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500 
Adaptive hydraulic struts, auto-leveling and ht. adjustable  $4000
Electronic systems calibration selector $200 
Sport suspension (upgrade)  $0
Wheels, dark finish $0 
Transmission 
Launch control $100 
Total Value of Features$10,355$11,705$15,075
Value of Feature Adjustments$0$1,350$4,720
Value of Feature Adjustments0-9-4,395

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Specifications Comparison: Porsche 911 vs. Mercedes-Benz SL

Model Year20152008
Model911SL
Body2dr Convertible2dr Hardtop conv.
Wheelbase96.5 in100.8 in
Length176.8 in178.5 in
Width71.2 in71.5 in
Height51.3 in51.0 in
Curb Weight3,341 lb.4,564 lb.
Fuel Capacity16.9 gal.21.1 gal.
Row 1 Headroom0.0 in37.7 in
Row 1 Shoulder Room0.0 in54.0 in
Row 1 Hip Room0.0 in53.9 in
Row 1 Legroom0.0 in42.9 in
Cargo Volume,
Minimum
4.8 ft37.3 ft3
Cargo Volume,
Maximum
4.810.2 ft3

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Option Package Details
Porsche 911 Carrera S

Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Proximity key250Yes
Interior ambient lighting150Yes
Heated front seats200Yes
Steering-linked headlights150No
Headlight washers50Yes
Cornering lights50Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power tilt adjuster, passenger seat100Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested242592%
Total Not Requested2258%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power tilt adjuster, passenger seat100Yes
Total Requested150088%
Total Not Requested20012%

Option Package Details
Porsche 911 Carrera GTS

Premium Package Plus
FeatureValueRequested?
Proximity key250Yes
Interior ambient lighting150Yes
Heated front seats200Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power tilt adjuster, passenger seat100Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested222589%
Total Not Requested27511%

Option Package Details
Mercedes-Benz SL SL65 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Total Requested400100%
Total Not Requested00%

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