Porsche Boxster Porsche Boxster 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2011

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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: $64,225

Mercedes-Benz SLK SLK350   
Difference: $7,340

Lowest Total Invoice: $57,131

Porsche Boxster S   
Difference: $2,661

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082011
ModelBoxsterSLK
TrimSSLK350
Body2dr Convertible2dr Hardtop conv.
Base Price $55,700 $53,300
Base Invoice $43,512 $49,569
Xenon HID headlights 1,090  
Power Seat Package 1,550  
Auto-dimming rearview mirror 690  
Metallic paint (extra cost) 690 720
Navigation system 3,110  
Floor mats 115  
Wind blocker, small 375  
Automatic climate control, front 550 760
Wood trim 890 690
Illuminated door sill trim plates 725 700
Wood/leather-wrapped steering wheel 1,360  
5-speed shiftable automatic 3,210  
CD changer, remote 650  
Lighting Package   1,070
Multimedia Package   2,890
Premium 1 Package   2,590
Upgraded leather upholstery   630
Xenon HID headlights 927  
Power Seat Package 1,318  
Auto-dimming rearview mirror 587  
Metallic paint (extra cost) 587 670
Navigation system 2,644  
Floor mats 98  
Wind blocker, small 319  
Automatic climate control, front 468 707
Wood trim 757 642
Illuminated door sill trim plates 616 651
Wood/leather-wrapped steering wheel 1,156  
5-speed shiftable automatic 2,729  
CD changer, remote 553  
Lighting Package   995
Multimedia Package   2,688
Premium 1 Package   2,409
Upgraded leather upholstery   586
Options (change) 15,005 10,050
Options (change) 12,759 9,348
Destination 860 875
Total Price $71,565 $64,225
Total Invoice $57,131 $59,792

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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 and Invoice: Mercedes-Benz SLK SLK350
TrueDelta Adjusted Price Difference: $11,785
TrueDelta Adjusted Invoice Difference: $1,477
Model Year20082011
ModelBoxsterSLK
TrimSSLK350
Body2dr Convertible2dr Hardtop conv.
Engine295hp H6300hp V6
TransmissionT5T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)18/25 MPG18/26 MPG
Audio (watts, speakers)230, 7?, 9
Tire (rear if not all the same)235/40-18225/40-18
Total Price$71,565$64,225
Adjustments for Features0-4,445
Feature-Adjusted Total Price$71,565$59,780
Total Invoice$57,131$59,792
Adjustments for Features0-4,138
Feature-Adjusted Total Invoice$57,131$55,654

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20082011
ModelBoxsterSLK
TrimSSLK350
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
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 
Brake assist $50
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 
Aux input $50
Bluetooth cell phone link $100
CD changer, in-dash $325
CD changer, remote$200 
CD player$125 
DVD-compatible player $0
HD radio $50
iPod integration $100
Media drive $15
MP3-compatible player $50
Satellite radio $200
SD Card slot $25
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 
Automatic headlights $125
Cornering lights $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
Turn signals on or near mirrors $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Memory system, passenger seat $150
Power 4-way lumbar adjuster, passenger seat $150
Total Value of Features$6,405$10,850
Value of Feature Adjustments$0$4,445
Value of Feature Adjustments0-4,138

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20082011
ModelBoxsterSLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in95.7 in
Length170.4 in160.7 in
Width70.9 in70.4 in
Height51.0 in51.0 in
Curb Weight3,053 lb.3,295 lb.
Fuel Capacity17.0 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

Power Seat Package
FeatureValueRequested?
Power fore-aft adjuster, driver seat100Yes
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
Total Requested850100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK350

Wood trim
FeatureValueRequested?
Wood trim300Yes
Wood/leather-wrapped steering wheel150Yes
Total Requested450100%
Total Not Requested00%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200No
DVD-compatible player0No
Voice control for nav and audio100No
Traffic information25No
HD radio50No
Media drive, large15No
SD Card slot25No
Total Requested60059%
Total Not Requested41541%
Premium 1 Package
FeatureValueRequested?
Tilt/telescoping steering wheel, power100No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Memory system, driver seat200Yes
Memory system, passenger seat150No
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Auto-dimming driver-side mirror75Yes
Remote window/roof operation15No
Mirror tilt-down in reverse25No
Interior ambient lighting150Yes
iPod integration100No
Total Requested152574%
Total Not Requested54026%

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