Porsche Cayenne Porsche Cayenne 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2016

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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: $79,440

Mercedes-Benz SLK AMG SLK55   
Difference: $20,050

Lowest Total Invoice: $73,945

Mercedes-Benz SLK AMG SLK55   
Difference: $12,972

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082016
ModelCayenneSLK
TrimTurboAMG SLK55
Body4dr SUV2dr Hardtop conv.
Base Price $93,700 $72,600
Base Invoice $81,859 $67,518
Light Comfort Package 610  
Front sport buckets 0  
Body kit 1,390  
Floor mats 140  
Compass 95  
Satellite radio 750  
Proximity key 995  
Illuminated door sill trim plates 915 850
Premium 2 Package   3,050
Premium 3 Package   1,295
Metallic paint (extra cost)   720
Light Comfort Package 519  
Front sport buckets 0  
Body kit 1,182  
Floor mats 119  
Compass 81  
Satellite radio 638  
Proximity key 846  
Illuminated door sill trim plates 778 791
Premium 2 Package   2,837
Premium 3 Package   1,204
Metallic paint (extra cost)   670
Options (change) 4,895 5,915
Options (change) 4,163 5,502
Destination 895 925
Total Price $99,490 $79,440
Total Invoice $86,917 $73,945

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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

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

Request free, no-obligation Porsche Cayenne dealer quotes or Mercedes-Benz SLK 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 Cayenne vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK AMG SLK55
TrueDelta Adjusted Price Difference: $22,010
TrueDelta Adjusted Invoice Difference: $14,796
Model Year20082016
ModelCayenneSLK
TrimTurboAMG SLK55
Body4dr SUV2dr Hardtop conv.
Engine500hp V8415hp V8
TransmissionT6T7
DrivetrainAWD w/4LRWD
EPA Fuel Economy (city/highway)12/19 MPG19/28 MPG
Audio (watts, speakers)350, 14500, 11
Tire (rear if not all the same)255/55-18235/40-18
Total Price$99,490$79,440
Adjustments for Features0-1,960
Feature-Adjusted Total Price$99,490$77,480
Total Invoice$86,917$73,945
Adjustments for Features0-1,824
Feature-Adjusted Total Invoice$86,917$72,121

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Features Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20082016
ModelCayenneSLK
TrimTurboAMG SLK55
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 
Power liftgate$350 
Power rear side windows$200 
Remote app $25
Remote window/roof operation $15
Semi-automated parking system $500
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Blind spot warning system $200
Driver drowsiness monitor $150
Hill descent control$250 
Knee airbag, driver $75
Knee airbag, passenger $75
Lane departure warning $200
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
Infotainment 
App support $0
Aux input $50
Bluetooth audio streaming $25
Bluetooth cell phone link $100
DVD-compatible player $0
HD radio $50
In-vehicle Internet $150
Media drive $15
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
USB port $25
Voice control for nav and audio $100
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 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade) $0
Total Value of Features$9,415$11,375
Value of Feature Adjustments$0$1,960
Value of Feature Adjustments0-1,824

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Specifications Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20082016
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 Weight5,191 lb.3,528 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

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 AMG SLK55

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Blind spot warning system200No
Navigation map updates, three years0No
DVD-compatible player0No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation system600Yes
Voice control for nav and audio100No
Total Requested92564%
Total Not Requested51536%
Premium 3 Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Lane departure warning system200No
Obstacle detection, front150Yes
Obstacle detection, rear250Yes
Parking guidance system - active500No
Total Requested90056%
Total Not Requested70044%

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