Mercedes-Benz SLK Mercedes-Benz SLK 2008 Porsche Boxster Porsche Boxster 2009

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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: $71,250

Mercedes-Benz SLK SLK55 AMG   
Difference: $3,985

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082009
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Base Price $63,200 $56,700
Lighting Package 1,010  
Metallic paint (extra cost) 710 710
iPod integration 375 440
Automatic climate control, front 720 550
Navigation system 1,200 3,110
Premium II Package 1,410  
CD changer, remote 450  
Adaptive Sports Seats   3,055
Auto-dimming rearview mirror   690
Xenon HID headlights   1,560
7-speed automated manual   3,420
Floor mats   90
Heated front seats   500
CD changer, in-dash   650
Bluetooth cell phone link   695
Satellite radio   750
Audio controls on steering wheel   990
Wind blocker, small   375
Lighting Package 939  
Metallic paint (extra cost) 659 0
iPod integration 349 0
Automatic climate control, front 670 468
Navigation system 1,116 0
Premium II Package 1,311  
CD changer, remote 418  
Adaptive Sports Seats   2,597
Auto-dimming rearview mirror   587
Xenon HID headlights   0
7-speed automated manual   0
Floor mats   0
Heated front seats   0
CD changer, in-dash   553
Bluetooth cell phone link   0
Satellite radio   0
Audio controls on steering wheel   842
Wind blocker, small   319
Options (change) 5,875 17,585
Options (change) 5,462 5,366
Destination 875 950
Gas Tax 1,300 0
Total Price $71,250 $75,235

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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: $7,250
TrueDelta Adjusted Invoice Difference: $57,054
Model Year20082009
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Engine355hp V8310hp H6
TransmissionT7S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)14/20 MPG20/29 MPG
Audio (watts, speakers)380, 11185, 7
Tire (rear if not all the same)225/40-18235/40-18
Total Price$71,250$75,235
Adjustments for Features-3,2650
Feature-Adjusted Total Price$67,985$75,235

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Features Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20082009
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 
CD changer, in-dash $325
CD changer, remote$200 
CD player$125 
DVD-Audio-compatible player $0
Media drive $15
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, 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$10,435$7,170
Value of Feature Adjustments$3,265$0
Value of Feature Adjustments-3,0430

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Specifications Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20082009
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

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250No
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50Yes
Total Requested15020%
Total Not Requested60080%

Option Package Details
Porsche Boxster S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Steering-linked headlights150No
Headlight washers50Yes
Total Requested55079%
Total Not Requested15021%
7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100Yes
Total Requested100100%
Total Not Requested00%
iPod integration
FeatureValueRequested?
iPod integration100Yes
Aux input50Yes
Media drive, large15No
Total Requested15091%
Total Not Requested159%
Navigation system
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
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 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 Requested95070%
Total Not Requested40030%

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