Mercedes-Benz SL Mercedes-Benz SL 2009 Porsche 718 Cayman Porsche 718 Cayman 2017

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Mercedes-Benz SL vs. Porsche 718 Cayman 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. Porsche 718 Cayman Invoice Comparison

Lowest Total Price: $90,875

Porsche 718 Cayman S   
Difference: $54,630

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092017
ModelSL718 Cayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Base Price $139,100 $66,300
Illuminated door sill trim plates 700 825
Adaptive cruise control 2,230  
Adaptive sport seats plus   3,825
Premium Package Plus   3,170
Adaptive cruise control, all-speed   1,670
7-speed automated manual   3,200
Upholstered instrument panel, leather   2,160
Wood trim   1,810
Synthetic suede headliner   1,180
Wood/leather-wrapped steering wheel   990
Navigation system   1,730
Metal pedals   535
Metallic paint (extra cost)   640
Adaptive dampers - electrical   1,790
Illuminated door sill trim plates 651 0
Adaptive cruise control 2,074  
Adaptive sport seats plus   0
Premium Package Plus   0
Adaptive cruise control, all-speed   0
7-speed automated manual   0
Upholstered instrument panel, leather   0
Wood trim   0
Synthetic suede headliner   0
Wood/leather-wrapped steering wheel   0
Navigation system   0
Metal pedals   0
Metallic paint (extra cost)   0
Adaptive dampers - electrical   0
Options (change) 2,930 23,525
Options (change) 2,725 0
Destination 875 1,050
Gas Tax 2,600 0
Total Price $145,505 $90,875

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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 Porsche 718 Cayman dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Mercedes-Benz SL vs. Porsche 718 Cayman

Lowest Adjusted Price and Invoice: Porsche 718 Cayman S
TrueDelta Adjusted Price Difference: $44,010
TrueDelta Adjusted Invoice Difference: $124,619
Model Year20092017
ModelSL718 Cayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Engine510hp V12350hp H4
TransmissionT5S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)11/18 MPG21/28 MPG
Audio (watts, speakers)510, 10110, 6
Tire (rear if not all the same)255/40-18235/40-19
Total Price$145,505$90,875
Adjustments for Features-10,6200
Feature-Adjusted Total Price$134,885$90,875

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Features Comparison: Mercedes-Benz SL vs. Porsche 718 Cayman

Model Year20092017
ModelSL718 Cayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
7-speed automated manual $1200
RWD$0$0
Accessories 
Adaptive cruise control$600 
Adaptive cruise control, all-speed $850
Heated steering wheel $100
Power trunk closer$350 
Remote window/roof operation$15 
Wind blocker, small$100 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Auto-raising roll bars / headrests$500 
Automatic braking, high-speed or partial $200
Forward collision warning $200
Knee airbag, passenger $75
Radar- or camera-based collision preparation system $0
Rearview camera $200
Side curtain airbags $350
Temporary spare tire$150 
Cargo Management 
Air-conditioned storage compartment$50 
Cargo net $40
Storage compartment under front seat(s)$50 
Climate Control 
Water-repellent front-door glass $15
Wiper de-icer$25 
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration $0
Regenerative braking $0
Exterior 
Glass roof panel(s)$300 
Painted brake calipers (optional) $0
Power retractable hardtop$6750 
Retractable rear spoiler $400
Infotainment 
Bluetooth audio streaming $25
CD changer, in-dash$325 
CD player $125
DVD-Audio-compatible player $0
DVD-compatible player$0 
Handwriting recognition $200
HD radio $50
iPod integration$100 
Media drive$15 
Media drive, small $5
Off-road navigation system $0
Surround sound$250 
Telematics service, such as OnStar$200 
USB port $25
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror $75
Cornering lights$50 
Fog lights$125 
Mirror tilt-down in reverse$25 
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Massage, driver seat$100 
Massage, passenger seat$100 
Memory system, passenger seat$150 
Neck-level heating, front seats$150 
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
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500
Adaptive hydraulic struts, auto-leveling and ht. adjustable$4000 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$15,705$5,085
Value of Feature Adjustments$10,620$0
Value of Feature Adjustments-9,8940

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Specifications Comparison: Mercedes-Benz SL vs. Porsche 718 Cayman

Model Year20092017
ModelSL718 Cayman
Body2dr Hardtop conv.2dr Hatch
Wheelbase100.8 in97.4 in
Length180.4 in172.4 in
Width71.5 in70.9 in
Height51.1 in51.0 in
Curb Weight4,455 lb.3,054 lb.
Fuel Capacity21.1 gal.14.3 gal.
Row 1 Headroom37.7 in0.0 in
Row 1 Shoulder Room54.0 in0.0 in
Row 1 Hip Room53.9 in0.0 in
Row 1 Legroom42.9 in0.0 in
Cargo Volume,
Minimum
7.2 ft315.0 ft3
Cargo Volume,
Maximum
10.2 ft315.0 ft3

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Option Package Details
Porsche 718 Cayman S

Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700No
Radar- or camera-based collision preparation system0No
Automatic braking, high-speed or partial200No
Forward collision warning200No
Total Requested00%
Total Not Requested1100100%
7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100No
Total Requested00%
Total Not Requested100100%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather800Yes
Leather upholstery, extended coverage0No
Total Requested800100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Heated steering wheel100No
Total Requested27573%
Total Not Requested10027%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Handwriting recognition200No
Total Requested60075%
Total Not Requested20025%
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
Power thigh support length adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support length adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Front sport buckets100Yes
Total Requested160089%
Total Not Requested20011%
Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Proximity key250Yes
Perimeter approach lighting25No
Interior ambient lighting150Yes
Automatic climate control, front200Yes
Heated front seats200Yes
Dual-zone climate control125Yes
Residual heat50Yes
Automatic air recirculation100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested190095%
Total Not Requested1005%

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