Porsche 911 Porsche 911 2008 Mercedes-Benz SLK Mercedes-Benz SLK 2016

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Porsche 911 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 911 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $79,790

Mercedes-Benz SLK AMG SLK55   
Difference: $20,435

Lowest Total Invoice: $74,271

Mercedes-Benz SLK AMG SLK55   
Difference: $13,014

Calculate Payments

  Down Payment Interest Rate Term
Model Year2008200820082016
Model911911911SLK
TrimCarreraCarrera STurboAMG SLK55
Body2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.
Base Price $83,800 $94,100 $136,500 $72,600
Base Invoice $73,192 $82,209 $119,331 $67,518
Adaptive Sports Seats 3,055 3,055    
Auto-dimming rearview mirror 385 385    
Xenon HID headlights 1,090      
Metallic paint (extra cost) 690 690   720
Floor mats 140 140 140  
Audio controls on steering wheel 990 990    
Bluetooth cell phone link 960 960 960  
Illuminated door sill trim plates 725 725 725 850
Navigation system 2,110 2,110    
Heated front seats 500 500 500  
Adaptive dampers - electrical 1,990      
Obstacle detection, rear 530 530 530  
Dual-mode exhaust, switchable 2,400 2,400    
Wood/leather-wrapped steering wheel     620  
Premium 2 Package       3,050
Premium 3 Package       1,295
Wind blocker, small       350
Adaptive Sports Seats 2,597 2,597    
Auto-dimming rearview mirror 327 327    
Xenon HID headlights 927      
Metallic paint (extra cost) 587 587   670
Floor mats 119 119 119  
Audio controls on steering wheel 842 842    
Bluetooth cell phone link 816 816 816  
Illuminated door sill trim plates 616 616 616 791
Navigation system 1,794 1,794    
Heated front seats 425 425 425  
Adaptive dampers - electrical 1,692      
Obstacle detection, rear 451 451 451  
Dual-mode exhaust, switchable 2,040 2,040    
Wood/leather-wrapped steering wheel     527  
Premium 2 Package       2,837
Premium 3 Package       1,204
Wind blocker, small       326
Options (change) 15,565 12,485 3,475 6,265
Options (change) 13,233 10,614 2,954 5,828
Destination 860 860 860 925
Total Price $100,225 $107,445 $140,835 $79,790
Total Invoice $87,285 $93,683 $123,145 $74,271

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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 Porsche 911 dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Porsche 911 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK AMG SLK55
TrueDelta Adjusted Price Difference: $27,630
TrueDelta Adjusted Invoice Difference: $19,711
Model Year2008200820082016
Model911911911SLK
TrimCarreraCarrera STurboAMG SLK55
Body2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.
Engine325hp H6355hp H6480hp H6415hp V8
TransmissionM6M6M6T7
DrivetrainRWDRWDAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)235, 9235, 9325, 13500, 11
Tire (rear if not all the same)235/40-18235/35-19235/35-19235/40-18
Total Price$100,225$107,445$140,835$79,790
Adjustments for Features0-125-2,350-7,195
Feature-Adjusted Total Price$100,225$107,320$138,485$72,595
Cost Above Minimum$0$7,095$38,260$0
Total Invoice$87,285$93,683$123,145$74,271
Adjustments for Features0-109-2,055-6,697
Feature-Adjusted Total Invoice$87,285$93,574$121,090$67,574
Cost Above Minimum$0$6,289$33,805$0

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Features Comparison: Porsche 911 vs. Mercedes-Benz SLK

Model Year2008200820082016
Model911911911SLK
TrimCarreraCarrera STurboAMG SLK55
Body2dr Convertible2dr Convertible2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150$150$150 
7-speed manually-shiftable automatic   $1200
RWD$0$0 $0
AWD  $1700 
Accessories 
Proximity key   $250
Remote app   $25
Semi-automated parking system   $500
Tilt/telescoping steering wheel, manual$250$250$250 
Tilt/telescoping steering wheel, power   $350
Wind blocker$300$300$300 
Wind blocker, small   $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats   $0
Auto-raising roll bars / headrests$500$500$500 
Blind spot warning system   $200
Driver drowsiness monitor   $150
Knee airbag, driver   $75
Knee airbag, passenger   $75
Lane departure warning   $200
Obstacle detection, front   $150
Roll bar   $200
Side curtain airbags   $350
Temporary spare tire   $150
Torque vectoring, brake-based   $100
Climate Control 
Dual-zone climate control   $125
Residual heat   $50
Water-repellent front-door glass$15$15$15 
Drivetrain 
Limited-slip rear differential  $300 
Engine / Motor 
Automatic start / stop   $150
Dual-mode exhaust, switchable$500$500 $500
Rear-engine configuration$0$0$0 
Exterior 
Body kit   $0
Glass roof panel(s)   $300
Larger rear spoiler  $200 
Power convertible top$4000$4000$4000 
Power retractable hardtop   $6750
Rear spoiler   $200
Retractable rear spoiler$400$400  
Infotainment 
App support   $0
Aux input   $50
Bluetooth audio streaming   $25
DVD-Audio-compatible player  $0 
DVD-compatible player   $0
HD radio   $50
In-vehicle Internet   $150
Media drive   $15
Navigation map updates, three years   $0
Off-road navigation system$0$0$0 
Satellite radio   $200
SD Card slot   $25
SMS text-to-speech reader   $25
Surround sound  $250$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
Boost gauge  $75 
Compass   $0
Fog light, rear   $100
Fog lights $125$125 
Illuminated visor mirror, driver$50$50$50 
Illuminated visor mirror, passenger$50$50$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 
Aluminum trim   $100
Folding second row seats$300$300$300 
Leather-wrapped steering wheel$150$150 $150
Memory system, passenger seat   $150
Neck-level heating, front seats   $150
No leather in second row   $-300
Power seatback bolsters, driver seat$100$100  
Power seatback bolsters, passenger seat$100$100  
Power thigh bolsters, driver seat$100$100  
Power thigh bolsters, passenger seat$100$100  
Synthetic suede inserts in leather seating surfaces   $0
Upholstered instrument panel, leather  $1000 
Wood/leather-wrapped steering wheel  $150 
Suspension, Wheels, and Tires 
Sport suspension (upgrade)   $0
Transmission 
Steering-wheel-mounted transmission controls   $100
Total Value of Features$7,065$7,190$9,415$14,260
Value of Feature Adjustments$0$125$2,350$7,195
Value of Feature Adjustments0-109-2,055-6,697

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Specifications Comparison: Porsche 911 vs. Mercedes-Benz SLK

Model Year20082016
Model911SLK
Body2dr Convertible2dr Hardtop conv.
Wheelbase92.5 in95.7 in
Length175.6 in162.8 in
Width71.2 in71.5 in
Height51.6 in51.2 in
Curb Weight3,242 lb.3,242 lb.
Fuel Capacity17.0 gal.15.9 gal.
Row 1 Headroom38.0 in38.0 in
Row 1 Shoulder Room51.7 in52.2 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in42.5 in
Row 2 Headroom31.5 in0.0 in
Cargo Volume,
Minimum
4.8 ft36.4 ft3
Cargo Volume,
Maximum
4.810.1 ft3

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Option Package Details
Porsche 911 Carrera

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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Carrera S

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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Mercedes-Benz SLK AMG SLK55

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125No
Blind spot warning system200No
Media drive15No
Traffic + travel information25No
SD Card slot25No
In-vehicle Internet150No
App support0No
Navigation map updates, three years0No
DVD-compatible player0No
Voice control for nav and audio100No
Navigation system600Yes
Total Requested80056%
Total Not Requested64044%
Premium 3 Package
FeatureValueRequested?
Adaptive dampers - electrical500Yes
Lane departure warning system200No
Obstacle detection, rear250Yes
Parking guidance system - active500No
Obstacle detection, front150No
Total Requested75047%
Total Not Requested85053%

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