Porsche Cayenne Porsche Cayenne 2009 Mercedes-Benz SLK Mercedes-Benz SLK 2015

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Porsche Cayenne vs. Mercedes-Benz SLK 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 Cayenne vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $80,355

Mercedes-Benz SLK SLK55 AMG   
Difference: $50,250

Lowest Total Invoice: $74,797

Mercedes-Benz SLK SLK55 AMG   
Difference: $36,366

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092015
ModelCayenneSLK
TrimTurbo SSLK55 AMG
Body4dr SUV2dr Hardtop conv.
Base Price $123,600 $70,900
Base Invoice $105,060 $65,937
iPod integration 440  
Light Comfort Package 610  
Satellite radio 750  
Body kit 1,390  
Floor mats 140  
Bluetooth cell phone link 695  
Compass 95  
Proximity key 995 650
Illuminated door sill trim plates 915 850
Multimedia Package   2,330
Automatic climate control, front   760
Obstacle detection, rear   970
Metallic paint (extra cost)   720
Carbon fiber trim   2,250
iPod integration 374  
Light Comfort Package 519  
Satellite radio 638  
Body kit 1,182  
Floor mats 119  
Bluetooth cell phone link 591  
Compass 81  
Proximity key 846 605
Illuminated door sill trim plates 778 791
Multimedia Package   2,167
Automatic climate control, front   707
Obstacle detection, rear   902
Metallic paint (extra cost)   670
Carbon fiber trim   2,093
Options (change) 6,030 8,530
Options (change) 5,128 7,935
Destination 975 925
Total Price $130,605 $80,355
Total Invoice $111,163 $74,797

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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 Porsche Cayenne dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $50,170
TrueDelta Adjusted Invoice Difference: $36,298
Model Year20092015
ModelCayenneSLK
TrimTurbo SSLK55 AMG
Body4dr SUV2dr Hardtop conv.
Engine550hp V8415hp V8
TransmissionT6T7
DrivetrainAWD w/4LRWD
EPA Fuel Economy (city/highway)12/19 MPG19/28 MPG
Audio (watts, speakers)410, 14500, 11
Tire (rear if not all the same)295/35-21235/40-18
Total Price$130,605$80,355
Adjustments for Features-800
Feature-Adjusted Total Price$130,525$80,355
Total Invoice$111,163$74,797
Adjustments for Features-680
Feature-Adjusted Total Invoice$111,095$74,797

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Features Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20092015
ModelCayenneSLK
TrimTurbo SSLK55 AMG
Body4dr SUV2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed manually-shiftable automatic $1200
AWD w/low range$2200 
RWD $0
Accessories 
Air compressor$35 
Heated steering wheel$100 
Parking guidance system - passive $250
Power liftgate$350 
Power rear side windows$200 
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Driver drowsiness monitor $150
Hill descent control$250 
Knee airbag, driver $75
Knee airbag, passenger $75
Roll bar $200
Rollover sensor$50 
Torque vectoring, brake-based $100
Cargo Management 
Air-conditioned storage compartment$50 
Cargo cover$75 
Cargo net$40 
Liftglass or two-piece tailgate$150 
Overhead sunglass holder$25 
Rear seat pass-through$100 
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Automatic air recirculation$100 
Rear air vents$100 
Rear wiper$175 
Water-repellent front-door glass$15 
Drivetrain 
Lockable center differential$150 
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable $500
Exterior 
Deep-tinted rear windows$275 
Glass roof panel(s) $300
Power retractable hardtop $6750
Wheel-lip moldings$75 
Infotainment 
App support $0
Bluetooth audio streaming $25
HD radio $50
In-vehicle Internet $150
Navigation map updates, three years $0
SD Card slot $25
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
Traffic information$25 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Cornering lights$50 
Fog lights$125 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Turn signals on or near mirrors $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Center armrest(s), second row$50 
Folding second row seats$300 
Heated second row seats$200 
Neck-level heating, front seats $150
No leather in second row $-300
Power seat belt height adjusters, front row$25 
Synthetic suede headliner$650 
Synthetic suede inserts in leather seating surfaces $0
Upholstered instrument panel, leather$1000 
Suspension, Wheels, and Tires 
Active stabilizer bars$500 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade) $0
Total Value of Features$10,515$10,435
Value of Feature Adjustments$80$0
Value of Feature Adjustments-680

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Specifications Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20092015
ModelCayenneSLK
Body4dr SUV2dr Hardtop conv.
Wheelbase112.4 in95.7 in
Length188.9 in162.8 in
Width76.0 in71.5 in
Height66.9 in51.2 in
Curb Weight5,192 lb.3,583 lb.
Fuel Capacity26.4 gal.15.9 gal.
Row 1 Headroom39.7 in38.0 in
Row 1 Shoulder Room58.5 in52.2 in
Row 1 Hip Room57.4 in0.0 in
Row 1 Legroom40.6 in42.5 in
Row 2 Headroom38.9 in0.0 in
Row 2 Shoulder Room56.7 in0.0 in
Row 2 Hip Room53.3 in0.0 in
Row 2 Legroom36.0 in0.0 in
Cargo Volume,
Minimum
19.1 ft36.4 ft3
Cargo Volume,
Maximum
62.5 ft310.1 ft3

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Option Package Details
Porsche Cayenne Turbo S

Light Comfort Package
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested22575%
Total Not Requested7525%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Automatic climate control, front
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Total Requested325100%
Total Not Requested00%
Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150Yes
Parking guidance system - passive250No
Total Requested40062%
Total Not Requested25038%
Multimedia Package
FeatureValueRequested?
DVD-compatible player0Yes
Media drive15Yes
Traffic + travel information25Yes
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested74081%
Total Not Requested17519%

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