Porsche Cayman Porsche Cayman 2016 Mercedes-Benz SL Mercedes-Benz SL 2018

We are 103,000+ car owners sharing real-world car information.

Join Us

Porsche Cayman 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 Cayman vs. Mercedes-Benz SL Invoice Comparison

Lowest Total Price: $107,075

Porsche Cayman GT4   
Difference: $61,670

Calculate Payments

  Down Payment Interest Rate Term
Model Year20162018
ModelCaymanSL
TrimGT4AMG SL63
Body2dr Hatch2dr Hardtop conv.
Base Price $84,600 $152,850
PCM 2,965  
Adaptive sport seats plus 3,025  
Automatic climate control, front 760  
Auto-dimming mirrors 690  
Porsche Dynamic Light System 690  
Interior ambient lighting 340  
Metallic paint (extra cost) 710  
Illuminated door sill trim plates 825  
Upholstered instrument panel, leather 1,090  
HD radio 1,040  
Heated front seats 530  
App support 210  
Voice control for nav and audio 520  
Wheels, dark finish 685 2,200
Ceramic brake rotors 7,400 8,950
6-speed manual 0  
Synthetic suede steering wheel   500
Black exterior trim (optional)   750
Painted brake calipers (optional)   1,000
Ultra-sport suspension (upgrade)   1,500
Wood trim   0
PCM 0  
Adaptive sport seats plus 0  
Automatic climate control, front 0  
Auto-dimming mirrors 0  
Porsche Dynamic Light System 0  
Interior ambient lighting 0  
Metallic paint (extra cost) 0  
Illuminated door sill trim plates 0  
Upholstered instrument panel, leather 0  
HD radio 0  
Heated front seats 0  
App support 0  
Voice control for nav and audio 0  
Wheels, dark finish 0 2,046
Ceramic brake rotors 0 8,324
6-speed manual 0  
Synthetic suede steering wheel   465
Black exterior trim (optional)   698
Painted brake calipers (optional)   930
Ultra-sport suspension (upgrade)   1,395
Wood trim   0
Options (change) 21,480 14,900
Options (change) 0 13,858
Destination 995 995
Total Price $107,075 $168,745

Return to top

While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Porsche Cayman dealer quotes or Mercedes-Benz SL 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: Porsche Cayman vs. Mercedes-Benz SL

Lowest Adjusted Price and Invoice: Porsche Cayman GT4
TrueDelta Adjusted Price Difference: $41,400
TrueDelta Adjusted Invoice Difference: $12,074
Model Year20162018
ModelCaymanSL
TrimGT4AMG SL63
Body2dr Hatch2dr Hardtop conv.
Engine385hp H6577hp V8
TransmissionM6T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)18/23 MPG16/25 MPG
Audio (watts, speakers)235, 9600, 11
Tire (rear if not all the same)245/35-20255/35-19
Total Price$107,075$168,745
Adjustments for Features0-20,270
Feature-Adjusted Total Price$107,075$148,475

Return to top

Features Comparison: Porsche Cayman vs. Mercedes-Benz SL

Model Year20162018
ModelCaymanSL
TrimGT4AMG SL63
Body2dr Hatch2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Hands-free trunk or liftgate $100
Power trunk closer $350
Proximity key $250
Remote app $25
Remote window/roof operation $15
Semi-automated parking system $500
Wind blocker, power small $300
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
Automatic braking, low-speed $200
Brake- or yaw-sensor-initiated collision preparation system $0
Driver drowsiness monitor $150
Forward collision warning $200
Obstacle detection, front $150
Obstacle detection, rear $250
Rearview camera $200
Cargo Management 
Air-conditioned storage compartment $50
Cargo net$40 
Storage compartment under front seat(s) $50
Climate Control 
Adaptive windshield washer system $0
Heated washer fluid system $50
Heated windshield washer nozzles$15 
Washer fluid outlets in wiper blade $100
Water-repellent front-door glass$15 
Wiper de-icer $25
Drivetrain 
Electronically-variable engine mounts (performance-oriented)$500 
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration$0 
Raised top speed limiter $0
Regenerative braking$0 
Exterior 
Bright-finished exhaust tip(s) $25
Glass roof panel(s) $300
Power retractable hardtop $6750
Rear spoiler $200
Tall rear wing-type spoiler$500 
Infotainment 
Android Auto support $100
Apple CarPlay support $100
Audio controls on steering wheel $125
DVD-Audio-compatible player$0 
DVD-compatible player $0
In-vehicle Internet $150
iPod integration $100
Navigation map updates, three years $0
Off-road navigation system$0 
SD Card slot $25
SMS text-to-speech reader $25
Surround sound $250
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
Traffic information$25 
USB port$25 
Wi-Fi hotspot $50
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Chronometer $100
Cornering lights $50
Headlight washers$50 
Interior ambient lighting$150 
Interior ambient lighting, configurable $150
LED headlights $1000
Mirror tilt-down in reverse $25
Turn signals on or near mirrors $25
Xenon HID headlights$500 
Seats and Interior Trim 
Aluminum trim$100 
Automatic seat bolsters, driver $300
Automatic seat bolsters, front passenger $300
Cooled or ventilated front seats $300
Leather door panel trim $250
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 seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Synthetic suede door panel trim$250 
Synthetic suede headliner $650
Synthetic suede inserts in leather seating surfaces$0 
Wood trim $300
Suspension, Wheels, and Tires 
Active curve tilting $1000
Adaptive hydraulic struts, auto-leveling and ht. adjustable $4000
Electronic systems calibration selector $200
Transmission 
Downshift rev matching$50 
Launch control $100
Steering-wheel-mounted transmission controls $100
Total Value of Features$2,845$23,115
Value of Feature Adjustments$0$20,270
Value of Feature Adjustments0-1,784

Return to top

Specifications Comparison: Porsche Cayman vs. Mercedes-Benz SL

Model Year20162018
ModelCaymanSL
Body2dr Hatch2dr Hardtop conv.
Wheelbase97.4 in101.7 in
Length172.4 in182.3 in
Width70.9 in73.9 in
Height50.9 in51.2 in
Curb Weight2,955 lb.4,112 lb.
Fuel Capacity16.9 gal.19.8 gal.
Row 1 Headroom0.0 in39.1 in
Row 1 Shoulder Room0.0 in55.5 in
Row 1 Legroom0.0 in42.9 in
Cargo Volume,
Minimum
15.0 ft38.5 ft3
Cargo Volume,
Maximum
15.013.5 ft3

Return to top

Option Package Details
Porsche Cayman GT4

PCM
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0Yes
Traffic information25Yes
Off-road navigation system0No
Media drive15Yes
USB port25Yes
Total Requested665100%
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
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
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
Total Requested150088%
Total Not Requested20012%
Auto-dimming mirrors
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Porsche Dynamic Light System
FeatureValueRequested?
Steering-linked headlights150Yes
Headlight washers50No
Total Requested15075%
Total Not Requested5025%

Option Package Details
Mercedes-Benz SL AMG SL63

Wheels, dark finish
FeatureValueRequested?
Wheels, dark finish0Yes
Alloy wheels, optional design0No
255/35ZR19 tires200No
285/30ZR20 tires200No
Total Requested00%
Total Not Requested400100%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Porsche models.