Porsche Boxster Porsche Boxster 2016 Mercedes-Benz SLK Mercedes-Benz SLK 2014

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

Join Us

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: $78,320

Mercedes-Benz SLK SLK55 AMG   
Difference: $17,540

Calculate Payments

  Down Payment Interest Rate Term
Model Year20162014
ModelBoxsterSLK
TrimSpyderSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Base Price $82,100 $68,925
Auto-dimming mirrors 690  
Automatic climate control, front 760 760
Adaptive sport seats plus 2,635  
Metallic paint (extra cost) 710 720
Interior ambient lighting 340  
Heated front seats 530  
Bright-finished exhaust tip(s) 650  
Illuminated door sill trim plates 825 850
Carbon fiber trim 445 2,250
Voice control for nav and audio 520  
CD changer, in-dash 670  
6-speed manual 0  
Infotainment Package 3,990  
Bose 505W 10 speakers 0  
Multimedia Package   2,150
Lighting Package   1,390
Wind blocker, small   350
Auto-dimming mirrors 0  
Automatic climate control, front 0 707
Adaptive sport seats plus 0  
Metallic paint (extra cost) 0 670
Interior ambient lighting 0  
Heated front seats 0  
Bright-finished exhaust tip(s) 0  
Illuminated door sill trim plates 0 791
Carbon fiber trim 0 2,093
Voice control for nav and audio 0  
CD changer, in-dash 0  
6-speed manual 0  
Infotainment Package 0  
Bose 505W 10 speakers 0  
Multimedia Package   2,000
Lighting Package   1,293
Wind blocker, small   326
Options (change) 12,765 8,470
Options (change) 0 7,880
Destination 995 925
Total Price $95,860 $78,320

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 Porsche Boxster dealer quotes or Mercedes-Benz SLK 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: Porsche Boxster vs. Mercedes-Benz SLK

Lowest Adjusted Price: Mercedes-Benz SLK SLK55 AMG
Lowest Adjusted Invoice: Porsche Boxster Spyder
TrueDelta Adjusted Price Difference: $22,595
TrueDelta Adjusted Invoice Difference: $67,204
Model Year20162014
ModelBoxsterSLK
TrimSpyderSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Engine375hp H6415hp V8
TransmissionM6T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)18/24 MPG19/28 MPG
Audio (watts, speakers)445, 10500, 11
Tire (rear if not all the same)235/35-20235/40-18
Total Price$95,860$78,320
Adjustments for Features0-5,055
Feature-Adjusted Total Price$95,860$73,265

Return to top

Features Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20162014
ModelBoxsterSLK
TrimSpyderSLK55 AMG
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Driver drowsiness monitor $150
Temporary spare tire $150
Cargo Management 
Cargo net$40 
Climate Control 
Automatic air recirculation$100 
Water-repellent front-door glass$15 
Drivetrain 
Electronically-variable engine mounts (performance-oriented)$500 
Limited-slip rear differential$300 
Engine / Motor 
Automatic start / stop $150
Mid-engine configuration$0 
Regenerative braking$0 
Exterior 
Black exterior trim (optional)$0 
Body kit $0
Convertible top$3000 
Glass roof panel(s) $300
Painted brake calipers (optional)$0 
Power retractable hardtop $6750
Rear spoiler $200
Retractable rear spoiler$400 
Infotainment 
Audio controls on steering wheel $125
DVD-Audio-compatible player$0 
DVD-compatible player $0
In-vehicle Internet $150
Off-road navigation system$0 
SD Card slot $25
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Traffic + travel information $25
Traffic information$25 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Chronometer$100 
Compass $0
Headlight washers $50
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 
Leather door panel trim $250
Leather-wrapped steering wheel $150
Memory system, passenger seat $150
Neck-level heating, front seats $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 
Power thigh support length adjuster, driver seat$100 
Power thigh support length adjuster, passenger seat$100 
Synthetic suede door panel trim$250 
Synthetic suede steering wheel$150 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$5,805$10,860
Value of Feature Adjustments$0$5,055
Value of Feature Adjustments0-4,706

Return to top

Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SLK

Model Year20162014
ModelBoxsterSLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase97.4 in95.7 in
Length172.2 in162.8 in
Width70.9 in71.5 in
Height50.5 in51.2 in
Curb Weight2,899 lb.3,583 lb.
Fuel Capacity16.9 gal.15.9 gal.
Row 1 Headroom38.6 in38.0 in
Row 1 Shoulder Room51.7 in52.2 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom42.6 in42.5 in
Cargo Volume,
Minimum
9.9 ft36.4 ft3
Cargo Volume,
Maximum
9.910.1 ft3

Return to top

Option Package Details
Porsche Boxster Spyder

Auto-dimming mirrors
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested32581%
Total Not Requested7519%
Adaptive sport seats plus
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power thigh support adjuster, driver seat100No
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Power thigh support adjuster, passenger seat100No
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested110065%
Total Not Requested60035%
Infotainment Package
FeatureValueRequested?
App support0Yes
USB port25Yes
Satellite radio200Yes
DVD-Audio-compatible player0Yes
HD radio50Yes
Off-road navigation system0No
Media drive15Yes
Navigation system600Yes
Traffic information25Yes
Total Requested915100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Automatic climate control, front
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Total Requested325100%
Total Not Requested00%
Multimedia Package
FeatureValueRequested?
CD changer, in-dash200Yes
DVD-compatible player0No
Media drive, large15Yes
Traffic + travel information25Yes
SD Card slot25No
In-vehicle Internet150No
App support0Yes
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested94084%
Total Not Requested17516%
Lighting Package
FeatureValueRequested?
Steering-linked headlights150No
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
Total Requested50056%
Total Not Requested40044%

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 Porsche models.