Mercedes-Benz SL Mercedes-Benz SL 2008 Porsche Cayman Porsche Cayman 2007

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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: $64,665

Porsche Cayman   
Difference: $33,940

Lowest Total Invoice: $56,174

Porsche Cayman   
Difference: $35,681

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820082008200820072007
ModelSLSLSLSLCaymanCayman
TrimSL550SL600SL55 AMGSL65 AMGBaseS
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hatch2dr Hatch
Base Price $95,300 $133,200 $129,300 $187,200 $49,400 $58,900
Base Invoice $88,629 $123,876 $120,249 $174,096 $43,075 $51,392
Obstacle detection, rear 1,130 1,130 1,130 1,130 530 530
Wood trim     0 0 890 890
Xenon HID headlights         1,090 1,090
Auto-dimming rearview mirror         690 690
Adaptive Sports Seats         3,055 3,055
Navigation system         3,070 3,070
Wood/leather-wrapped steering wheel         1,360 1,360
CD changer, remote         650 650
Automatic climate control, front         550 550
Heated front seats         480 480
Floor mats         115 115
Adaptive dampers - electrical         1,990 1,990
Obstacle detection, rear 1,051 1,051 1,051 1,051 451 451
Wood trim     0 0 757 757
Xenon HID headlights         927 927
Auto-dimming rearview mirror         587 587
Adaptive Sports Seats         2,597 2,597
Navigation system         2,610 2,610
Wood/leather-wrapped steering wheel         1,156 1,156
CD changer, remote         553 553
Automatic climate control, front         468 468
Heated front seats         408 408
Floor mats         98 98
Adaptive dampers - electrical         1,692 1,692
Options (change) 1,130 1,130 1,130 1,130 14,470 14,470
Options (change) 1,051 1,051 1,051 1,051 12,304 12,304
Destination 875 875 875 875 795 795
Gas Tax 1,300 2,600 2,600 2,600 0 0
Total Price $98,605 $137,805 $133,905 $191,805 $64,665 $74,165
Total Invoice $91,855 $128,402 $124,775 $178,622 $56,174 $64,491

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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: Mercedes-Benz SL vs. Porsche Cayman

Lowest Adjusted Price and Invoice: Porsche Cayman
TrueDelta Adjusted Price Difference: $19,655
TrueDelta Adjusted Invoice Difference: $22,374
Model Year200820082008200820072007
ModelSLSLSLSLCaymanCayman
TrimSL550SL600SL55 AMGSL65 AMGBaseS
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hatch2dr Hatch
Engine382hp V8510hp V12510hp V8604hp V12245hp H6295hp H6
TransmissionT7T5T5T5M5M6
DrivetrainRWDRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)250, 8250, 8250, 8250, 850, 4230, 7
Tire (rear if not all the same)255/40-18255/40-18255/35-19255/35-19205/55-17235/40-18
Total Price$98,605$137,805$133,905$191,805$64,665$74,165
Adjustments for Features-14,285-15,335-14,485-15,4350-150
Feature-Adjusted Total Price$84,320$122,470$119,420$176,370$64,665$74,015
Cost Above Minimum$0$38,150$35,100$92,050$0$9,350
Total Invoice$91,855$128,402$124,775$178,622$56,174$64,491
Adjustments for Features-13,307-14,289-13,497-14,3740-130
Feature-Adjusted Total Invoice$78,548$114,113$111,278$164,248$56,174$64,361
Cost Above Minimum$0$35,565$32,730$85,700$0$8,187

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Features Comparison: Mercedes-Benz SL vs. Porsche Cayman

Model Year200820082008200820072007
ModelSLSLSLSLCaymanCayman
TrimSL550SL600SL55 AMGSL65 AMGBaseS
Body2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hatch2dr Hatch
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200     
5-speed manually-shiftable automatic $1000$1000$1000  
5-speed manual    $0 
6-speed manual     $150
RWD$0$0$0$0$0$0
Accessories 
Power trunk closer $350 $350  
Proximity key $250 $250  
Remote window/roof operation$15$15$15$15  
Tilt/telescoping steering wheel, manual    $250$250
Tilt/telescoping steering wheel, power$350$350$350$350  
Wind blocker, small$100$100$100$100  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0$0$0  
Auto-raising roll bars / headrests$500$500$500$500  
Brake assist$50$50$50$50  
Knee airbag, driver$75$75$75$75  
Obstacle detection, front$150$150$150$150  
Cargo Management 
Air-conditioned storage compartment$50$50$50$50  
Cargo net    $40$40
Storage compartment under front seat(s)$50$50$50$50  
Climate Control 
Dual-zone climate control$125$125$125$125  
Residual heat$50$50$50$50  
Water-repellent front-door glass    $15$15
Wiper de-icer$25$25$25$25  
Engine / Motor 
Mid-engine configuration    $0$0
Exterior 
Body kit  $0$0  
Power retractable hardtop$6750$6750$6750$6750  
Retractable rear spoiler    $400$400
Infotainment 
Bluetooth cell phone link$100$100$100$100  
MP3-compatible player$50$50$50$50  
Satellite radio$200$200$200$200  
Surround sound$250$250$250$250  
Telematics service, such as OnStar$200$200$200$200  
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror    $75$75
Automatic headlights$125$125$125$125  
Cornering lights $50 $50  
Mirror tilt-down in reverse$25$25$25$25  
Turn signals on or near mirrors$25$25$25$25  
Seats and Interior Trim 
Cooled or ventilated front seats $300 $300  
Leather-wrapped steering wheel$150     
Memory system, passenger seat$150$150$150$150  
Power 4-way lumbar adjuster, driver seat $150$150$150$150$150
Power 4-way lumbar adjuster, passenger seat $150$150$150  
Power headrest height adjuster, driver seat$50$50$50$50  
Power headrest height adjuster, passenger seat$50$50$50$50  
Power lumbar adjuster, driver seat$100     
Power lumbar adjuster, passenger seat$100     
Power seatback bolsters, driver seat $100$100$100$100$100
Power seatback bolsters, passenger seat $100$100$100$100$100
Power thigh bolsters, driver seat    $100$100
Power thigh bolsters, passenger seat    $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 steering wheel  $150$150  
Upholstered instrument panel, leather$1000$1000$1000$1000  
Wood/leather-wrapped steering wheel $150  $150$150
Suspension, Wheels, and Tires 
Adaptive dampers - electrical    $500$500
Adaptive hydraulic struts, auto-leveling and ht. adjustable$4000$4000$4000$4000  
Sport suspension (upgrade)  $0$0  
Transmission 
Steering-wheel-mounted transmission controls  $100$100  
Total Value of Features$16,265$17,315$16,465$17,415$1,980$2,130
Value of Feature Adjustments$14,285$15,335$14,485$15,435$0$150
Value of Feature Adjustments-13,307-14,289-13,497-14,3740-130

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Specifications Comparison: Mercedes-Benz SL vs. Porsche Cayman

Model Year20082007
ModelSLCayman
Body2dr Hardtop conv.2dr Hatch
Wheelbase100.8 in95.1 in
Length178.5 in170.9 in
Width71.5 in70.9 in
Height51.0 in51.4 in
Curb Weight4,221 lb.2,966 lb.
Fuel Capacity21.1 gal.17.0 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 ft314.5 ft3
Cargo Volume,
Maximum
10.2 ft314.5 ft3

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Option Package Details
Porsche Cayman

Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Total Requested550100%
Total Not Requested00%
Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
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
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%

Option Package Details
Porsche Cayman S

Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Total Requested550100%
Total Not Requested00%
Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
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
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%

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