Mercedes-Benz SLK Mercedes-Benz SLK 2016 Porsche Boxster Porsche Boxster 2008

We are 103,000+ car owners sharing real-world car information.

Join Us

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: $74,310

Porsche Boxster S   
Difference: $7,730

Lowest Total Invoice: $59,464

Porsche Boxster S   
Difference: $16,900

Calculate Payments

  Down Payment Interest Rate Term
Model Year20162008
ModelSLKBoxster
TrimAMG SLK55S
Body2dr Hardtop conv.2dr Convertible
Base Price $72,600 $55,700
Base Invoice $67,518 $43,512
Premium 3 Package 1,295  
Premium 2 Package 3,050  
Metallic paint (extra cost) 720 690
Illuminated door sill trim plates 850 725
Carbon fiber trim 2,250 890
Wind blocker, small 350 375
Adaptive Sports Seats   3,055
Auto-dimming rearview mirror   690
Xenon HID headlights   1,090
Floor mats   115
Heated front seats   480
Obstacle detection, rear   530
Automatic climate control, front   550
Carbon fiber / leather-wrapped steering wheel   1,360
Adaptive dampers - electrical   1,990
Dual-mode exhaust, switchable   2,100
Navigation system   3,110
Premium 3 Package 1,204  
Premium 2 Package 2,837  
Metallic paint (extra cost) 670 587
Illuminated door sill trim plates 791 616
Carbon fiber trim 2,093 757
Wind blocker, small 326 319
Adaptive Sports Seats   2,597
Auto-dimming rearview mirror   587
Xenon HID headlights   927
Floor mats   98
Heated front seats   408
Obstacle detection, rear   451
Automatic climate control, front   468
Carbon fiber / leather-wrapped steering wheel   1,156
Adaptive dampers - electrical   1,692
Dual-mode exhaust, switchable   1,785
Navigation system   2,644
Options (change) 8,515 17,750
Options (change) 7,921 15,092
Destination 925 860
Total Price $82,040 $74,310
Total Invoice $76,364 $59,464

Return to top

While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Mercedes-Benz SLK dealer quotes or Porsche Boxster dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

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

Lowest Adjusted Price: Mercedes-Benz SLK AMG SLK55
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $615
TrueDelta Adjusted Invoice Difference: $9,132
Model Year20162008
ModelSLKBoxster
TrimAMG SLK55S
Body2dr Hardtop conv.2dr Convertible
Engine415hp V8295hp H6
TransmissionT7M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)19/28 MPG18/26 MPG
Audio (watts, speakers)500, 11230, 7
Tire (rear if not all the same)235/40-18235/40-18
Total Price$82,040$74,310
Adjustments for Features-8,3450
Feature-Adjusted Total Price$73,695$74,310
Total Invoice$76,364$59,464
Adjustments for Features-7,7680
Feature-Adjusted Total Invoice$68,596$59,464

Return to top

Features Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20162008
ModelSLKBoxster
TrimAMG SLK55S
Body2dr Hardtop conv.2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
6-speed manual $150
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 
Brake assist$50 
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 
Aux input$50 
Bluetooth audio streaming$25 
Bluetooth cell phone link$100 
DVD-compatible player$0 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
MP3-compatible player$50 
Navigation map updates, three years$0 
Satellite radio$200 
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 
Voice control for nav and audio$100 
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 
Steering-linked headlights$150 
Turn signals on or near mirrors$25 
Visor mirror, driver$10 
Visor mirror, passenger$10 
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel $150
Leather-wrapped steering wheel$150 
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 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$14,050$5,705
Value of Feature Adjustments$8,345$0
Value of Feature Adjustments-7,7680

Return to top

Specifications Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20162008
ModelSLKBoxster
Body2dr Hardtop conv.2dr Convertible
Wheelbase95.7 in95.1 in
Length162.8 in170.4 in
Width71.5 in70.9 in
Height51.2 in51.0 in
Curb Weight3,528 lb.2,965 lb.
Fuel Capacity15.9 gal.17.0 gal.
Row 1 Headroom38.0 in38.4 in
Row 1 Shoulder Room52.2 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom42.5 in41.6 in
Cargo Volume,
Minimum
6.4 ft39.9 ft3
Cargo Volume,
Maximum
10.1 ft39.9 ft3

Return to top

Option Package Details
Mercedes-Benz SLK AMG SLK55

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%
Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Blind spot warning system200No
DVD-compatible player0No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100No
Total Requested80056%
Total Not Requested64044%

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, 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
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Total Requested95070%
Total Not Requested40030%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Convertibles
See TrueDelta's information for all Mercedes-Benz models.