Porsche Boxster Porsche Boxster 2009 Mercedes-Benz SLK Mercedes-Benz SLK 2016

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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: $81,815

Porsche Boxster S   
Difference: $225

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092016
ModelBoxsterSLK
TrimSAMG SLK55
Body2dr Convertible2dr Hardtop conv.
Base Price $56,700 $72,600
Xenon HID headlights 1,560  
Auto-dimming rearview mirror 690  
Adaptive Sports Seats 3,055  
7-speed automated manual 3,420  
iPod integration 440  
Navigation system 3,110  
Metallic paint (extra cost) 710 720
Dual-mode exhaust, switchable 2,500  
Floor mats 90  
Audio controls on steering wheel 990  
Bluetooth cell phone link 695  
Heated front seats 500  
Satellite radio 750  
Wind blocker, small 375 350
Illuminated door sill trim plates 725 850
Carbon fiber trim 890 2,250
Voice control for nav and audio 595  
Adaptive dampers - electrical 1,990  
Obstacle detection, rear 530  
Automatic climate control, front 550  
Premium 2 Package   3,050
Premium 3 Package   1,295
Xenon HID headlights 0  
Auto-dimming rearview mirror 587  
Adaptive Sports Seats 2,597  
7-speed automated manual 0  
iPod integration 0  
Navigation system 0  
Metallic paint (extra cost) 0 670
Dual-mode exhaust, switchable 0  
Floor mats 0  
Audio controls on steering wheel 842  
Bluetooth cell phone link 0  
Heated front seats 0  
Satellite radio 0  
Wind blocker, small 319 326
Illuminated door sill trim plates 616 791
Carbon fiber trim 757 2,093
Voice control for nav and audio 0  
Adaptive dampers - electrical 1,692  
Obstacle detection, rear 451  
Automatic climate control, front 468  
Premium 2 Package   2,837
Premium 3 Package   1,204
Options (change) 24,165 8,515
Options (change) 8,329 7,921
Destination 950 925
Total Price $81,815 $82,040

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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 AMG SLK55
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $6,205
TrueDelta Adjusted Invoice Difference: $61,100
Model Year20092016
ModelBoxsterSLK
TrimSAMG SLK55
Body2dr Convertible2dr Hardtop conv.
Engine310hp H6415hp V8
TransmissionS7T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)20/29 MPG19/28 MPG
Audio (watts, speakers)185, 7500, 11
Tire (rear if not all the same)235/40-18235/40-18
Total Price$81,815$82,040
Adjustments for Features0-6,430
Feature-Adjusted Total Price$81,815$75,610

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20092016
ModelBoxsterSLK
TrimSAMG SLK55
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Proximity key $250
Remote app $25
Remote window/roof operation $15
Semi-automated parking system $500
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Blind spot warning system $200
Driver drowsiness monitor $150
Knee airbag, driver $75
Knee airbag, passenger $75
Lane departure warning $200
Obstacle detection, front $150
Side curtain airbags $350
Temporary spare tire $150
Torque vectoring, brake-based $100
Cargo Management 
Cargo net$40 
Climate Control 
Dual-zone climate control $125
Residual heat $50
Water-repellent front-door glass$15 
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration$0 
Exterior 
Body kit $0
Glass roof panel(s) $300
Power convertible top$4000 
Power retractable hardtop $6750
Rear spoiler $200
Retractable rear spoiler$400 
Infotainment 
App support $0
Bluetooth audio streaming $25
DVD-Audio-compatible player$0 
DVD-compatible player $0
HD radio $50
In-vehicle Internet $150
iPod integration$100 
MP3-compatible player $50
Navigation map updates, three years $0
Off-road navigation system$0 
SD Card slot $25
SMS text-to-speech reader $25
Surround sound $250
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
USB port $25
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Automatic headlights $125
Compass $0
Fog lights$125 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
Power-folding mirrors $50
Turn signals on or near mirrors $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Memory system, passenger seat $150
Neck-level heating, front seats $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$6,705$13,135
Value of Feature Adjustments$0$6,430
Value of Feature Adjustments0-5,985

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20092016
ModelBoxsterSLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in95.7 in
Length172.1 in162.8 in
Width70.9 in71.5 in
Height50.9 in51.2 in
Curb Weight3,042 lb.3,528 lb.
Fuel Capacity16.9 gal.15.9 gal.
Row 1 Headroom38.4 in38.0 in
Row 1 Shoulder Room51.7 in52.2 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in42.5 in
Cargo Volume,
Minimum
9.9 ft36.4 ft3
Cargo Volume,
Maximum
9.910.1 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
Power height adjuster, driver seat50Yes
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
Total Requested95070%
Total Not Requested40030%

Option Package Details
Mercedes-Benz SLK AMG SLK55

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Blind spot warning system200No
DVD-compatible player0No
Media drive15Yes
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested91564%
Total Not Requested52536%
Premium 3 Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Lane departure warning system200No
Obstacle detection, front150No
Obstacle detection, rear250Yes
Parking guidance system - active500No
Total Requested75047%
Total Not Requested85053%

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