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

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Mercedes-Benz SLK vs. Porsche Boxster 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.

Mercedes-Benz SLK vs. Porsche Boxster Invoice Comparison

Lowest Total Price: $73,035

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

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Base Price $65,700 $58,600
Multimedia Package 2,980  
Lighting Package 1,030  
Metallic paint (extra cost) 720 710
Automatic climate control, front 730  
7-speed automated manual   3,660
Infotainment Package   3,640
Convenience Package   2,490
Adaptive Sports Seats   3,055
Audio controls on steering wheel   615
CD changer, in-dash   650
Voice control for nav and audio   595
Heated front seats   525
Multimedia Package 2,771  
Lighting Package 958  
Metallic paint (extra cost) 670 0
Automatic climate control, front 679  
7-speed automated manual   0
Infotainment Package   0
Convenience Package   0
Adaptive Sports Seats   0
Audio controls on steering wheel   0
CD changer, in-dash   0
Voice control for nav and audio   0
Heated front seats   0
Options (change) 5,460 15,940
Options (change) 5,078 0
Destination 875 950
Gas Tax 1,000 0
Total Price $73,035 $75,490

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

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

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 Year20092012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Engine355hp V8310hp H6
TransmissionT7S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)14/22 MPG20/29 MPG
Audio (watts, speakers)380, 11325, 11
Tire (rear if not all the same)225/40-18235/40-18
Total Price$73,035$75,490
Adjustments for Features-3,0550
Feature-Adjusted Total Price$69,980$75,490

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Features Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20092012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
7-speed automated manual $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$9,935$6,880
Value of Feature Adjustments$3,055$0
Value of Feature Adjustments-2,8470

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Specifications Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20092012
ModelSLKBoxster
Body2dr Hardtop conv.2dr Convertible
Wheelbase95.7 in95.1 in
Length160.7 in172.1 in
Width70.4 in70.9 in
Height51.0 in50.9 in
Curb Weight3,420 lb.3,042 lb.
Fuel Capacity18.5 gal.16.9 gal.
Row 1 Headroom37.9 in38.4 in
Row 1 Shoulder Room52.2 in51.7 in
Row 1 Hip Room54.6 in53.4 in
Row 1 Legroom42.5 in41.6 in
Cargo Volume,
Minimum
6.5 ft39.9 ft3
Cargo Volume,
Maximum
9.8 ft39.9 ft3

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Option Package Details
Mercedes-Benz SLK SLK55 AMG

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%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%

Option Package Details
Porsche Boxster S

7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100Yes
Total Requested100100%
Total Not Requested00%
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%

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