Porsche Cayenne Porsche Cayenne 2006 Mercedes-Benz SLK Mercedes-Benz SLK 2008

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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: $70,875

Mercedes-Benz SLK SLK55 AMG   
Difference: $44,510

Lowest Total Invoice: $66,064

Mercedes-Benz SLK SLK55 AMG   
Difference: $34,629

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062008
ModelCayenneSLK
TrimTurbo SSLK55 AMG
Body4dr SUV2dr Hardtop conv.
Base Price $111,600 $63,200
Base Invoice $97,351 $58,776
Light Comfort Package 610  
Front sport buckets 0  
Floor mats 130  
Satellite radio 990  
Tire-pressure monitor 590  
CD changer, remote 650 450
Lighting Package   1,010
Metallic paint (extra cost)   710
Automatic climate control, front   720
Navigation system   1,200
Premium II Package   1,410
Light Comfort Package 519  
Front sport buckets 0  
Floor mats 111  
Satellite radio 842  
Tire-pressure monitor 502  
CD changer, remote 553 418
Lighting Package   939
Metallic paint (extra cost)   659
Automatic climate control, front   670
Navigation system   1,116
Premium II Package   1,311
Options (change) 2,970 5,500
Options (change) 2,527 5,113
Destination 815 875
Gas Tax 0 1,300
Total Price $115,385 $70,875
Total Invoice $100,693 $66,064

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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: $44,145
TrueDelta Adjusted Invoice Difference: $34,310
Model Year20062008
ModelCayenneSLK
TrimTurbo SSLK55 AMG
Body4dr SUV2dr Hardtop conv.
Engine520hp V8355hp V8
TransmissionT6T7
DrivetrainAWD w/4LRWD
EPA Fuel Economy (city/highway)13/18 MPG14/20 MPG
Audio (watts, speakers)350, 14380, 11
Tire (rear if not all the same)275/40-20225/40-18
Total Price$115,385$70,875
Adjustments for Features-3650
Feature-Adjusted Total Price$115,020$70,875
Total Invoice$100,693$66,064
Adjustments for Features-3190
Feature-Adjusted Total Invoice$100,374$66,064

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Features Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20062008
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 
Power rear side windows$200 
Power trunk / liftgate pull-down$50 
Remote window/roof operation $15
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Hill descent control$250 
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, front$150 
Obstacle detection, rear$250 
Side curtain airbags$350 
Cargo Management 
Air-conditioned storage compartment$50 
Cargo cover$75 
Cargo net$40 
Overhead sunglass holder$25 
Rear seat pass-through$100 
Ski sack$50 
Storage compartment under front seat(s)$50 
Climate Control 
Rear air vents$100 
Rear wiper$175 
Exterior 
Body kit $0
Deep-tinted rear windows$275 
Power retractable hardtop $6750
Infotainment 
Aux input $50
Bluetooth cell phone link $100
MP3-compatible player$50 
Telematics service, such as OnStar $200
Traffic information$25 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Power-folding mirrors$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 
Power seat belt height adjusters, front row$25 
Synthetic suede inserts in leather seating surfaces $0
Upholstered instrument panel, leather$1000 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$9,100$8,735
Value of Feature Adjustments$365$0
Value of Feature Adjustments-3190

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Specifications Comparison: Porsche Cayenne vs. Mercedes-Benz SLK

Model Year20062008
ModelCayenneSLK
Body4dr SUV2dr Hardtop conv.
Wheelbase112.4 in95.7 in
Length188.2 in160.7 in
Width75.9 in70.4 in
Height66.9 in51.0 in
Curb Weight5,192 lb.3,420 lb.
Fuel Capacity26.4 gal.18.5 gal.
Row 1 Headroom39.7 in37.9 in
Row 1 Shoulder Room58.5 in52.2 in
Row 1 Hip Room57.4 in54.6 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 ft36.5 ft3
Cargo Volume,
Maximum
62.5 ft39.8 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

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100No
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested25033%
Total Not Requested50067%

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