Porsche Boxster Porsche Boxster 2012 Mercedes-Benz SLK Mercedes-Benz SLK 2009

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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: $73,035

Mercedes-Benz SLK SLK55 AMG   
Difference: $2,455

Calculate Payments

  Down Payment Interest Rate Term
Model Year20122009
ModelBoxsterSLK
TrimSSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Base Price $58,600 $65,700
Infotainment Package 3,640  
Convenience Package 2,490  
Adaptive Sports Seats 3,055  
7-speed automated manual 3,660  
Voice control for nav and audio 595  
Audio controls on steering wheel 615  
CD changer, in-dash 650  
Heated front seats 525  
Metallic paint (extra cost) 710 720
Lighting Package   1,030
Multimedia Package   2,980
Automatic climate control, front   730
Infotainment Package 0  
Convenience Package 0  
Adaptive Sports Seats 0  
7-speed automated manual 0  
Voice control for nav and audio 0  
Audio controls on steering wheel 0  
CD changer, in-dash 0  
Heated front seats 0  
Metallic paint (extra cost) 0 670
Lighting Package   958
Multimedia Package   2,771
Automatic climate control, front   679
Options (change) 15,940 5,460
Options (change) 0 5,078
Destination 950 875
Gas Tax 0 1,000
Total Price $75,490 $73,035

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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: Porsche Boxster vs. Mercedes-Benz SLK

Lowest Adjusted Price: Mercedes-Benz SLK SLK55 AMG
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $5,510
TrueDelta Adjusted Invoice Difference: $64,257
Model Year20122009
ModelBoxsterSLK
TrimSSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Engine310hp H6355hp V8
TransmissionS7T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)20/29 MPG14/22 MPG
Audio (watts, speakers)325, 11380, 11
Tire (rear if not all the same)235/40-18225/40-18
Total Price$75,490$73,035
Adjustments for Features0-3,055
Feature-Adjusted Total Price$75,490$69,980

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20122009
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 
Temporary spare tire $150
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 
DVD-Audio-compatible player$0 
DVD-compatible player $0
iPod integration $100
Off-road navigation system$0 
SD Card slot $25
Telematics service, such as OnStar $200
Traffic information$25 
USB port$25 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Automatic headlights $125
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, passenger 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$6,880$9,935
Value of Feature Adjustments$0$3,055
Value of Feature Adjustments0-2,847

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20122009
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

Infotainment Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
DVD-Audio-compatible player0Yes
Surround sound250Yes
Traffic information25No
Off-road navigation system0No
Media drive, large15Yes
Bose, 325W, 11 speakers (with subwoofer)350No
USB port25Yes
Total Requested109074%
Total Not Requested37526%
Convenience Package
FeatureValueRequested?
Wind blocker, small100Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Automatic climate control, front200Yes
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Total Requested122584%
Total Not Requested22516%
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
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
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested95070%
Total Not Requested40030%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25No
Total Requested96572%
Total Not Requested37528%

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