Porsche Boxster Porsche Boxster 2009 Mercedes-Benz SL Mercedes-Benz SL 2009

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Porsche Boxster vs. Mercedes-Benz SL 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 SL Invoice Comparison

Lowest Total Price: $70,375

Porsche Boxster   
Difference: $35,890

Calculate Payments

  Down Payment Interest Rate Term
Model Year200920092009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $46,600 $56,700 $98,500 $139,100 $135,000 $194,700
iPod integration 440 440        
Navigation system 3,110 3,110        
Adaptive Sports Seats 3,055 3,055        
Xenon HID headlights 1,560 1,560        
Auto-dimming rearview mirror 690 690        
Adaptive dampers - electrical 1,990 1,990        
Metallic paint (extra cost) 710 710        
Wood trim 890 890     0 0
Floor mats 90 90        
Heated front seats 500 500        
CD changer, in-dash 650 650        
Upholstered instrument panel, leather 2,025 2,025        
Satellite radio 750 750        
Bluetooth cell phone link 695 695        
Automatic climate control, front 550 550        
Audio controls on steering wheel 990 990        
Voice control for nav and audio 595 595        
Wind blocker, small 375 375        
Illuminated door sill trim plates 725 725 700 700 700 700
Obstacle detection, rear 530 530 1,140   1,140  
Cooled or ventilated front seats 800 800        
Synthetic suede steering wheel 1,105 1,105        
Premium I Package     3,750      
iPod integration 0 0        
Navigation system 0 0        
Adaptive Sports Seats 2,597 2,597        
Xenon HID headlights 0 0        
Auto-dimming rearview mirror 587 587        
Adaptive dampers - electrical 1,692 1,692        
Metallic paint (extra cost) 0 0        
Wood trim 757 757     0 0
Floor mats 0 0        
Heated front seats 0 0        
CD changer, in-dash 553 553        
Upholstered instrument panel, leather -306 -306        
Satellite radio 0 0        
Bluetooth cell phone link 0 0        
Automatic climate control, front 468 468        
Audio controls on steering wheel 842 842        
Voice control for nav and audio 0 0        
Wind blocker, small 319 319        
Illuminated door sill trim plates 616 616 651 651 651 651
Obstacle detection, rear 451 451 1,060   1,060  
Cooled or ventilated front seats 0 0        
Synthetic suede steering wheel 0 0        
Premium I Package     3,488      
Options (change) 22,825 22,825 5,590 700 1,840 700
Options (change) 8,576 8,576 5,199 651 1,711 651
Destination 950 950 875 875 875 875
Gas Tax 0 0 1,300 2,600 2,600 2,600
Total Price $70,375 $80,475 $106,265 $143,275 $140,315 $198,875

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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 Boxster dealer quotes or Mercedes-Benz SL dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $26,030
TrueDelta Adjusted Invoice Difference: $80,269
Model Year200920092009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine255hp H6310hp H6382hp V8510hp V12518hp V8604hp V12
TransmissionM6M6T7T5T7T5
DrivetrainRWDRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)50, 4185, 7510, 10510, 10510, 10510, 10
Tire (rear if not all the same)205/55-17235/40-18255/40-18255/40-18255/35-19255/35-19
Total Price$70,375$80,475$106,265$143,275$140,315$198,875
Adjustments for Features00-9,860-10,810-9,860-10,910
Feature-Adjusted Total Price$70,375$80,475$96,405$132,465$130,455$187,965
Cost Above Minimum$0$10,100$0$36,060$34,050$91,560

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year200920092009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150$150    
7-speed manually-shiftable automatic  $1200 $1200 
5-speed manually-shiftable automatic   $1000 $1000
RWD$0$0$0$0$0$0
Accessories 
Power trunk closer  $350$350 $350
Proximity key  $250$250 $250
Remote window/roof operation  $15$15$15$15
Tilt/telescoping steering wheel, manual$250$250    
Tilt/telescoping steering wheel, power  $350$350$350$350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats  $0$0$0$0
Auto-raising roll bars / headrests  $500$500$500$500
Knee airbag, driver  $75$75$75$75
Obstacle detection, front  $150$150$150$150
Roll bar$200$200    
Temporary spare tire  $150$150$150$150
Cargo Management 
Air-conditioned storage compartment  $50$50$50$50
Cargo net$40$40    
Storage compartment under front seat(s)  $50$50$50$50
Climate Control 
Automatic air recirculation  $100$100$100$100
Dual-zone climate control  $125$125$125$125
Residual heat  $50$50$50$50
Water-repellent front-door glass$15$15    
Wiper de-icer  $25$25$25$25
Engine / Motor 
Mid-engine configuration$0$0    
Exterior 
Body kit    $0$0
Glass roof panel(s)   $300 $300
Power convertible top$4000$4000    
Power retractable hardtop  $6750$6750$6750$6750
Retractable rear spoiler$400$400    
Infotainment 
DVD-Audio-compatible player$0$0    
DVD-compatible player  $0$0$0$0
MP3-compatible player  $50$50$50$50
Off-road navigation system$0$0    
SD Card slot  $25$25$25$25
Surround sound  $250$250$250$250
Telematics service, such as OnStar  $200$200$200$200
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75    
Automatic headlights  $125$125$125$125
Cornering lights  $50$50$50$50
Mirror tilt-down in reverse  $25$25$25$25
Turn signals on or near mirrors  $25$25$25$25
Seats and Interior Trim 
Cooled or ventilated front seats$300$300$300$300 $300
Leather-wrapped steering wheel  $150   
Massage, driver seat   $100$100$100
Massage, passenger seat   $100$100$100
Memory system, passenger seat  $150$150$150$150
Neck-level heating, front seats  $150$150 $150
Power 4-way lumbar adjuster, passenger seat  $150$150$150$150
Power headrest height adjuster, driver seat  $50$50$50$50
Power headrest height adjuster, passenger seat  $50$50$50$50
Power thigh bolsters, driver seat$100$100    
Power thigh bolsters, passenger seat$100$100    
Power thigh support length adjuster, driver seat  $100$100$100$100
Power thigh support length adjuster, passenger seat  $100$100$100$100
Synthetic suede headliner   $650$650$650
Synthetic suede steering wheel$150$150  $150$150
Wood/leather-wrapped steering wheel   $150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500    
Adaptive hydraulic struts, auto-leveling and ht. adjustable  $4000$4000$4000$4000
Sport suspension (upgrade)    $0$0
Transmission 
Launch control    $100 
Steering-wheel-mounted transmission controls    $100$100
Total Value of Features$6,280$6,280$16,140$17,090$16,140$17,190
Value of Feature Adjustments$0$0$9,860$10,810$9,860$10,910
Value of Feature Adjustments00-9,184-10,072-9,187-10,160

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year20092009
ModelBoxsterSL
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in100.8 in
Length172.1 in180.4 in
Width70.9 in71.5 in
Height50.9 in51.1 in
Curb Weight2,944 lb.4,221 lb.
Fuel Capacity16.9 gal.21.1 gal.
Row 1 Headroom38.4 in37.7 in
Row 1 Shoulder Room51.7 in54.0 in
Row 1 Hip Room53.4 in53.9 in
Row 1 Legroom41.6 in42.9 in
Cargo Volume,
Minimum
9.9 ft37.2 ft3
Cargo Volume,
Maximum
9.910.2 ft3

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Option Package Details
Porsche Boxster

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
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
Total Requested115085%
Total Not Requested20015%

Option Package Details
Porsche Boxster S

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
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
Total Requested115085%
Total Not Requested20015%

Option Package Details
Mercedes-Benz SL SL550

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%
Premium I Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Power decklid350No
Proximity key250No
Neck-level heating, front seats150No
Power seatback bolsters, driver100Yes
Power 4-way lumbar adjuster, passenger seat50No
Power seatback bolsters, passenger seat100Yes
Power 4-way lumbar adjuster, driver seat50Yes
Front sport buckets100Yes
Total Requested65045%
Total Not Requested80055%

Option Package Details
Mercedes-Benz SL SL63 AMG

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

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