Porsche Boxster Porsche Boxster 2009 Mercedes-Benz SLK Mercedes-Benz SLK 2007

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Porsche Boxster 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 Boxster vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $70,950

Mercedes-Benz SLK SLK55 AMG   
Difference: $3,845

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092007
ModelBoxsterSLK
TrimSSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Base Price $56,700 $62,500
7-speed automated manual 3,420  
Auto-dimming rearview mirror 690  
Adaptive Sports Seats 3,055  
Xenon HID headlights 1,560  
Metallic paint (extra cost) 710 700
Heated front seats 500  
Audio controls on steering wheel 990  
Navigation system 3,110 1,200
Floor mats 90  
Wind blocker, small 375  
Satellite radio 750  
Automatic climate control, front 550 710
Bluetooth cell phone link 695 925
CD changer, in-dash 650  
Lighting Package   1,000
Premium II Package   1,400
CD changer, remote   440
7-speed automated manual 0  
Auto-dimming rearview mirror 587  
Adaptive Sports Seats 2,597  
Xenon HID headlights 0  
Metallic paint (extra cost) 0 650
Heated front seats 0  
Audio controls on steering wheel 842  
Navigation system 0 1,116
Floor mats 0  
Wind blocker, small 319  
Satellite radio 0  
Automatic climate control, front 468 660
Bluetooth cell phone link 0 860
CD changer, in-dash 553  
Lighting Package   930
Premium II Package   1,302
CD changer, remote   409
Options (change) 17,145 6,375
Options (change) 5,366 5,927
Destination 950 775
Gas Tax 0 1,300
Total Price $74,795 $70,950

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

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

Lowest Adjusted Price: Mercedes-Benz SLK SLK55 AMG
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $6,650
TrueDelta Adjusted Invoice Difference: $57,197
Model Year20092007
ModelBoxsterSLK
TrimSSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Engine310hp H6355hp V8
TransmissionS7T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)20/29 MPG16/22 MPG
Audio (watts, speakers)185, 7380, 11
Tire (rear if not all the same)235/40-18225/40-18
Total Price$74,795$70,950
Adjustments for Features0-2,805
Feature-Adjusted Total Price$74,795$68,145

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20092007
ModelBoxsterSLK
TrimSSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Knee airbag, driver $75
Knee airbag, passenger $75
Roll bar$200 
Tire-pressure monitor$75 
Cargo Management 
Cargo net$40 
Climate Control 
Dual-zone climate control $125
Residual heat $50
Water-repellent front-door glass$15 
Engine / Motor 
Mid-engine configuration$0 
Exterior 
Body kit $0
Power convertible top$4000 
Power retractable hardtop $6750
Rear spoiler $200
Retractable rear spoiler$400 
Infotainment 
Aux input $50
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
Off-road navigation system$0 
Surround sound $250
Telematics service, such as OnStar $200
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Automatic headlights $125
Cornering lights $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
Steering-linked headlights$150 
Turn signals on or near mirrors $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Aluminum trim $100
Memory system, passenger seat $150
Power 4-way lumbar adjuster, driver seat$150 
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 inserts in leather seating surfaces $0
Suspension, Wheels, and Tires 
Sport suspension (upgrade) $0
Total Value of Features$7,380$10,185
Value of Feature Adjustments$0$2,805
Value of Feature Adjustments0-2,614

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20092007
ModelBoxsterSLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in95.7 in
Length172.1 in160.7 in
Width70.9 in70.4 in
Height50.9 in51.0 in
Curb Weight3,042 lb.3,420 lb.
Fuel Capacity16.9 gal.18.5 gal.
Row 1 Headroom38.4 in37.9 in
Row 1 Shoulder Room51.7 in52.2 in
Row 1 Hip Room53.4 in54.6 in
Row 1 Legroom41.6 in42.5 in
Cargo Volume,
Minimum
9.9 ft36.5 ft3
Cargo Volume,
Maximum
9.99.8 ft3

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Option Package Details
Porsche Boxster S

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Front sport buckets100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150No
Power fore-aft adjuster, passenger seat100Yes
Total Requested80059%
Total Not Requested55041%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium II Package
FeatureValueRequested?
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested00%
Total Not Requested650100%

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