Porsche Boxster Porsche Boxster 2007 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: $61,240

Porsche Boxster   
Difference: $40,575

Lowest Total Invoice: $52,178

Porsche Boxster   
Difference: $42,662

Calculate Payments

  Down Payment Interest Rate Term
Model Year200720072009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $45,600 $55,500 $98,500 $139,100 $135,000 $194,700
Base Invoice $38,760 $48,415 $91,605 $129,363 $125,550 $181,071
Adaptive Sports Seats 3,055 3,055        
Xenon HID headlights 1,090 1,090        
Auto-dimming rearview mirror 690 690        
CD changer, remote 650 650        
Wood/leather-wrapped steering wheel 1,360 1,360        
Navigation system 3,070 3,070        
Obstacle detection, rear 530 530 1,140   1,140  
Heated front seats 480 480        
Floor mats 115 115        
Wind blocker, small 375 375        
Automatic climate control, front 550 550        
Wood trim 890 890     0 0
Adaptive dampers - electrical 1,990 1,990        
Adaptive Sports Seats 2,597 2,597        
Xenon HID headlights 927 927        
Auto-dimming rearview mirror 587 587        
CD changer, remote 553 553        
Wood/leather-wrapped steering wheel 1,156 1,156        
Navigation system 2,610 2,610        
Obstacle detection, rear 451 451 1,060   1,060  
Heated front seats 408 408        
Floor mats 98 98        
Wind blocker, small 319 319        
Automatic climate control, front 468 468        
Wood trim 757 757     0 0
Adaptive dampers - electrical 1,692 1,692        
Options (change) 14,845 14,845 1,140 0 1,140 0
Options (change) 12,623 12,623 1,060 0 1,060 0
Destination 795 795 875 875 875 875
Gas Tax 0 0 1,300 2,600 2,600 2,600
Total Price $61,240 $71,140 $101,815 $142,575 $139,615 $198,175
Total Invoice $52,178 $61,833 $94,840 $132,838 $130,085 $184,546

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

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $30,125
TrueDelta Adjusted Invoice Difference: $32,928
Model Year200720072009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine245hp H6295hp H6382hp V8510hp V12518hp V8604hp V12
TransmissionM5M6T7T5T7T5
DrivetrainRWDRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)50, 4230, 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$61,240$71,140$101,815$142,575$139,615$198,175
Adjustments for Features0-150-10,450-12,100-11,150-12,200
Feature-Adjusted Total Price$61,240$70,990$91,365$130,475$128,465$185,975
Cost Above Minimum$0$9,750$0$39,110$37,100$94,610
Total Invoice$52,178$61,833$94,840$132,838$130,085$184,546
Adjustments for Features0-130-9,734-11,274-10,389-11,361
Feature-Adjusted Total Invoice$52,178$61,703$85,106$121,564$119,696$173,185
Cost Above Minimum$0$9,525$0$36,458$34,590$88,079

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year200720072009200920092009
ModelBoxsterBoxsterSLSLSLSL
TrimBaseSSL550SL600SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
5-speed manual$0     
6-speed manual $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
Proximity key   $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
Brake assist  $50$50$50$50
Knee airbag, driver  $75$75$75$75
Obstacle detection, front  $150$150$150$150
Roll bar$200$200    
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 
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 
Aux input  $50$50$50$50
Bluetooth cell phone link  $100$100$100$100
CD changer, in-dash  $325$325$325$325
CD changer, remote$200$200    
CD player$125$125    
DVD-compatible player  $0$0$0$0
iPod integration  $100$100$100$100
Media drive  $15$15$15$15
MP3-compatible player  $50$50$50$50
Satellite radio  $200$200$200$200
Surround sound  $250$250$250$250
Telematics service, such as OnStar  $200$200$200$200
Voice control for nav and audio  $100$100$100$100
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
Steering-linked headlights  $150$150$150$150
Turn signals on or near mirrors  $25$25$25$25
Seats and Interior Trim 
Cooled or ventilated front seats   $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
Power 4-way lumbar adjuster, driver seat$150$150 $150$150$150
Power 4-way lumbar adjuster, passenger seat   $150$150$150
Power headrest height adjuster, driver seat  $50$50$50$50
Power headrest height adjuster, passenger seat  $50$50$50$50
Power lumbar adjuster, driver seat  $100   
Power lumbar adjuster, passenger seat  $100   
Power seatback bolsters, driver seat$100$100 $100$100$100
Power seatback bolsters, passenger seat$100$100 $100$100$100
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 steering wheel    $150$150
Upholstered instrument panel, leather  $1000$1000$1000$1000
Wood/leather-wrapped steering wheel$150$150 $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$6,505$6,655$16,955$18,605$17,655$18,705
Value of Feature Adjustments$0$150$10,450$12,100$11,150$12,200
Value of Feature Adjustments0-130-9,734-11,274-10,389-11,361

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year20072009
ModelBoxsterSL
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in100.8 in
Length170.4 in180.4 in
Width70.9 in71.5 in
Height51.0 in51.1 in
Curb Weight2,856 lb.4,221 lb.
Fuel Capacity17.0 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
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
Power fore-aft adjuster, passenger 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
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
Power fore-aft adjuster, passenger 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%

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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