Mercedes-Benz SLK Mercedes-Benz SLK 2006 Porsche Boxster Porsche Boxster 2008

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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: $67,155

Mercedes-Benz SLK SLK55 AMG   
Difference: $1,670

Lowest Total Invoice: $54,801

Porsche Boxster S   
Difference: $7,799

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062008
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Base Price $61,500 $55,700
Base Invoice $57,195 $43,512
Premium Package 1,470  
Lighting Package 990  
Metallic paint (extra cost) 690 690
CD changer, remote 430 650
Adaptive Sports Seats   3,055
Auto-dimming rearview mirror   690
Xenon HID headlights   1,090
Floor mats   115
Heated front seats   480
Automatic climate control, front   550
Carbon fiber / leather-wrapped steering wheel   1,360
Wind blocker, small   375
5-speed shiftable automatic   3,210
Premium Package 1,367  
Lighting Package 921  
Metallic paint (extra cost) 642 587
CD changer, remote 400 553
Adaptive Sports Seats   2,597
Auto-dimming rearview mirror   587
Xenon HID headlights   927
Floor mats   98
Heated front seats   408
Automatic climate control, front   468
Carbon fiber / leather-wrapped steering wheel   1,156
Wind blocker, small   319
5-speed shiftable automatic   2,729
Options (change) 3,580 12,265
Options (change) 3,330 10,429
Destination 775 860
Gas Tax 1,300 0
Total Price $67,155 $68,825
Total Invoice $62,600 $54,801

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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: $4,675
TrueDelta Adjusted Invoice Difference: $4,998
Model Year20062008
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Engine355hp V8295hp H6
TransmissionT7T5
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)16/22 MPG18/25 MPG
Audio (watts, speakers)?, 9230, 7
Tire (rear if not all the same)225/40-18235/40-18
Total Price$67,155$68,825
Adjustments for Features-3,0050
Feature-Adjusted Total Price$64,150$68,825
Total Invoice$62,600$54,801
Adjustments for Features-2,8010
Feature-Adjusted Total Invoice$59,799$54,801

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Features Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20062008
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
5-speed manually-shiftable automatic $1000
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
Tire-pressure monitor $75
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 
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 
Turn signals on or near mirrors$25 
Visor mirror, driver$10 
Visor mirror, passenger$10 
Seats and Interior Trim 
Aluminum trim$100 
Carbon fiber / leather-wrapped steering wheel $150
Leather-wrapped steering wheel$150 
Memory system, passenger seat$150 
Power 4-way lumbar adjuster, driver 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 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$9,860$6,855
Value of Feature Adjustments$3,005$0
Value of Feature Adjustments-2,8010

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Specifications Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20062008
ModelSLKBoxster
Body2dr Hardtop conv.2dr Convertible
Wheelbase95.7 in95.1 in
Length160.7 in170.4 in
Width70.4 in70.9 in
Height51.0 in51.0 in
Curb Weight3,420 lb.3,053 lb.
Fuel Capacity18.5 gal.17.0 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

Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Universal garage door opener100Yes
Rain-sensing wipers100Yes
Total Requested400100%
Total Not Requested00%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%

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
Headlight washers50Yes
Total Requested550100%
Total Not Requested00%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
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 seat150No
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested80059%
Total Not Requested55041%

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