Mercedes-Benz SLK Mercedes-Benz SLK 2015 Porsche Boxster Porsche Boxster 2012

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: $76,385

Porsche Boxster S   
Difference: $3,670

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Base Price $70,900 $58,600
Multimedia Package 2,330  
Metallic paint (extra cost) 720 710
Obstacle detection, rear 970 530
Automatic climate control, front 760  
Wind blocker, small 350  
Illuminated door sill trim plates 850 725
Carbon fiber trim 2,250 1,140
Infotainment Package   3,640
Convenience Package   2,490
Adaptive Sports Seats   3,055
6-speed manual   0
Audio controls on steering wheel   615
Dual-mode exhaust, switchable   2,810
Voice control for nav and audio   595
Heated front seats   525
Multimedia Package 2,167  
Metallic paint (extra cost) 670 0
Obstacle detection, rear 902 451
Automatic climate control, front 707  
Wind blocker, small 326  
Illuminated door sill trim plates 791 0
Carbon fiber trim 2,093 0
Infotainment Package   0
Convenience Package   0
Adaptive Sports Seats   0
6-speed manual   0
Audio controls on steering wheel   0
Dual-mode exhaust, switchable   0
Voice control for nav and audio   0
Heated front seats   0
Options (change) 8,230 16,835
Options (change) 7,656 451
Destination 925 950
Total Price $80,055 $76,385

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 SLK55 AMG
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $2,710
TrueDelta Adjusted Invoice Difference: $67,178
Model Year20152012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Engine415hp V8310hp H6
TransmissionT7M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)19/28 MPG19/26 MPG
Audio (watts, speakers)500, 11325, 11
Tire (rear if not all the same)235/40-18235/40-18
Total Price$80,055$76,385
Adjustments for Features-6,3800
Feature-Adjusted Total Price$73,675$76,385

Return to top

Features Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20152012
ModelSLKBoxster
TrimSLK55 AMGS
Body2dr Hardtop conv.2dr Convertible
Transmission and Drivetrain 
7-speed manually-shiftable automatic$1200 
6-speed manual $150
RWD$0$0
Accessories 
Parking guidance system - passive$250 
Remote app$25 
Remote window/roof operation$15 
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 
Driver drowsiness monitor$150 
Knee airbag, driver$75 
Knee airbag, passenger$75 
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 
Bluetooth audio streaming$25 
DVD-Audio-compatible player $0
DVD-compatible player$0 
HD radio$50 
In-vehicle Internet$150 
Navigation map updates, three years$0 
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
Automatic headlights$125 
Compass$0 
Cornering lights $50
Fog lights $125
Illuminated visor mirror, driver $50
Illuminated visor mirror, passenger $50
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Turn signals on or near mirrors$25 
Visor mirror, driver$10 
Visor mirror, passenger$10 
Seats and Interior Trim 
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$12,010$5,630
Value of Feature Adjustments$6,380$0
Value of Feature Adjustments-5,9390

Return to top

Specifications Comparison: Mercedes-Benz SLK vs. Porsche Boxster

Model Year20152012
ModelSLKBoxster
Body2dr Hardtop conv.2dr Convertible
Wheelbase95.7 in95.1 in
Length162.8 in172.1 in
Width71.5 in70.9 in
Height51.2 in50.9 in
Curb Weight3,583 lb.2,987 lb.
Fuel Capacity15.9 gal.16.9 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 SLK55 AMG

Multimedia Package
FeatureValueRequested?
DVD-compatible player0No
Media drive15Yes
Traffic + travel information25Yes
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested74081%
Total Not Requested17519%

Option Package Details
Porsche Boxster S

Infotainment Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
DVD-Audio-compatible player0Yes
Surround sound250Yes
Traffic information25Yes
Off-road navigation system0No
Media drive, large15Yes
Bose, 325W, 11 speakers (with subwoofer)350No
USB port25Yes
Total Requested111576%
Total Not Requested35024%
Convenience Package
FeatureValueRequested?
Wind blocker, small100Yes
Cornering lights50No
Automatic climate control, front200Yes
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75No
Total Requested132591%
Total Not Requested1259%
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.