Mercedes-Benz SL Mercedes-Benz SL 2008 Porsche Cayman Porsche Cayman 2015

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Mercedes-Benz SL vs. Porsche 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 Cayman Invoice Comparison

Lowest Total Price: $82,550

Porsche Cayman S   
Difference: $55,255

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082015
ModelSLCayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Base Price $133,200 $63,800
Obstacle detection, rear 1,130 530
Adaptive sport seats plus   3,825
Premium Package Plus   2,950
6-speed manual   0
Wood trim   1,790
Wood/leather-wrapped steering wheel   1,250
Satellite radio   670
Upholstered instrument panel, leather   2,160
Synthetic suede headliner   1,180
Obstacle detection, front   330
Metallic paint (extra cost)   710
Adaptive dampers - electrical   1,790
CD changer, in-dash   570
Obstacle detection, rear 1,051 451
Adaptive sport seats plus   0
Premium Package Plus   0
6-speed manual   0
Wood trim   0
Wood/leather-wrapped steering wheel   0
Satellite radio   0
Upholstered instrument panel, leather   0
Synthetic suede headliner   0
Obstacle detection, front   0
Metallic paint (extra cost)   0
Adaptive dampers - electrical   0
CD changer, in-dash   0
Options (change) 1,130 17,755
Options (change) 1,051 451
Destination 875 995
Gas Tax 2,600 0
Total Price $137,805 $82,550

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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 Cayman dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Porsche Cayman S
TrueDelta Adjusted Price Difference: $43,145
TrueDelta Adjusted Invoice Difference: $115,672
Model Year20082015
ModelSLCayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Engine510hp V12325hp H6
TransmissionT5M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)11/18 MPG20/28 MPG
Audio (watts, speakers)250, 8235, 9
Tire (rear if not all the same)255/40-18235/40-19
Total Price$137,805$82,550
Adjustments for Features-12,1100
Feature-Adjusted Total Price$125,695$82,550

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Features Comparison: Mercedes-Benz SL vs. Porsche Cayman

Model Year20082015
ModelSLCayman
TrimSL600S
Body2dr Hardtop conv.2dr Hatch
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
6-speed manual $150
RWD$0$0
Accessories 
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 
Knee airbag, passenger $75
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 
Painted brake calipers (optional) $0
Power retractable hardtop$6750 
Retractable rear spoiler $400
Infotainment 
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash $325
CD changer, remote$200 
CD player$125 
Navigation system$600 
Surround sound$250 
Telematics service, such as OnStar$200 
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror $75
Cornering lights$50 
Mirror tilt-down in reverse$25 
Steering-linked headlights $150
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Memory system, passenger seat$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 
Total Value of Features$14,715$2,605
Value of Feature Adjustments$12,110$0
Value of Feature Adjustments-11,2840

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Specifications Comparison: Mercedes-Benz SL vs. Porsche Cayman

Model Year20082015
ModelSLCayman
Body2dr Hardtop conv.2dr Hatch
Wheelbase100.8 in97.4 in
Length178.5 in172.4 in
Width71.5 in70.9 in
Height51.0 in50.9 in
Curb Weight4,455 lb.2,910 lb.
Fuel Capacity21.1 gal.16.9 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
7.3 ft315.0 ft3
Cargo Volume,
Maximum
10.2 ft315.0 ft3

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Option Package Details
Porsche Cayman S

Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Heated steering wheel100No
Total Requested27573%
Total Not Requested10027%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather800Yes
Leather upholstery, extended coverage0No
Total Requested800100%
Total Not Requested00%
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 4-way lumbar adjuster, passenger seat150Yes
Power thigh support 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
Power thigh support adjuster, driver seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Front sport buckets100Yes
Total Requested160089%
Total Not Requested20011%
Premium Package Plus
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Proximity key250Yes
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 headlights150No
Headlight washers50Yes
Total Requested175089%
Total Not Requested22511%

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