Porsche Boxster Porsche Boxster 2008 Mercedes-Benz SL Mercedes-Benz SL 2011

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

Join Us

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: $65,430

Porsche Boxster   
Difference: $41,215

Lowest Total Invoice: $56,743

Porsche Boxster   
Difference: $42,589

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082008201120112011
ModelBoxsterBoxsterSLSLSL
TrimBaseSSL550SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $45,800 $55,700 $102,600 $139,050 $198,750
Base Invoice $39,923 $43,512 $95,418 $129,316 $184,838
Xenon HID headlights 1,090 1,090      
Adaptive Sports Seats 3,055 3,055      
Auto-dimming rearview mirror 690 690      
Adaptive dampers - electrical 1,990 1,990      
Metallic paint (extra cost) 690 690      
Wood trim 890 890   0 0
Navigation system 3,110 3,110      
Upholstered instrument panel, leather 1,735 1,735      
Automatic climate control, front 550 550      
Audio controls on steering wheel 990 990      
Wind blocker, small 375 375      
Floor mats 115 115      
Heated front seats 480 480      
Illuminated door sill trim plates 725 725 700 700 700
Obstacle detection, rear 530 530 1,170 1,170  
Synthetic suede steering wheel 1,105 1,105      
CD changer, remote 650 650      
Xenon HID headlights 927 927      
Adaptive Sports Seats 2,597 2,597      
Auto-dimming rearview mirror 587 587      
Adaptive dampers - electrical 1,692 1,692      
Metallic paint (extra cost) 587 587      
Wood trim 757 757   0 0
Navigation system 2,644 2,644      
Upholstered instrument panel, leather 1,475 1,475      
Automatic climate control, front 468 468      
Audio controls on steering wheel 842 842      
Wind blocker, small 319 319      
Floor mats 98 98      
Heated front seats 408 408      
Illuminated door sill trim plates 616 616 651 651 651
Obstacle detection, rear 451 451 1,088 1,088  
Synthetic suede steering wheel 939 939      
CD changer, remote 553 553      
Options (change) 18,770 18,770 1,870 1,870 700
Options (change) 15,960 15,960 1,739 1,739 651
Destination 860 860 875 875 875
Gas Tax 0 0 1,300 2,600 2,600
Total Price $65,430 $75,330 $106,645 $144,395 $202,925
Total Invoice $56,743 $60,332 $99,332 $134,530 $188,964

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 SL 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 SL

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $31,415
TrueDelta Adjusted Invoice Difference: $33,461
Model Year20082008201120112011
ModelBoxsterBoxsterSLSLSL
TrimBaseSSL550SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine245hp H6295hp H6382hp V8518hp V8604hp V12
TransmissionM5M6T7T7T5
DrivetrainRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)50, 4230, 7510, 10510, 10510, 10
Tire (rear if not all the same)205/55-17235/40-18255/40-18255/35-19255/35-19
Total Price$65,430$75,330$106,645$144,395$202,925
Adjustments for Features0-150-9,800-11,150-12,200
Feature-Adjusted Total Price$65,430$75,180$96,845$133,245$190,725
Cost Above Minimum$0$9,750$0$36,400$93,880
Total Invoice$56,743$60,332$99,332$134,530$188,964
Adjustments for Features0-120-9,128-10,388-11,361
Feature-Adjusted Total Invoice$56,743$60,212$90,204$124,142$177,603
Cost Above Minimum$0$3,469$0$33,938$87,399

Return to top

Features Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year20082008201120112011
ModelBoxsterBoxsterSLSLSL
TrimBaseSSL550SL63 AMGSL65 AMG
Body2dr Convertible2dr Convertible2dr 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
RWD$0$0$0$0$0
Accessories 
Power trunk closer    $350
Proximity key    $250
Remote window/roof operation  $15$15$15
Tilt/telescoping steering wheel, manual$250$250   
Tilt/telescoping steering wheel, power  $350$350$350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats  $0$0$0
Auto-raising roll bars / headrests  $500$500$500
Brake assist  $50$50$50
Knee airbag, driver  $75$75$75
Obstacle detection, front  $150$150$150
Roll bar$200$200   
Temporary spare tire  $150$150$150
Cargo Management 
Air-conditioned storage compartment  $50$50$50
Cargo net$40$40   
Storage compartment under front seat(s)  $50$50$50
Climate Control 
Automatic air recirculation  $100$100$100
Dual-zone climate control  $125$125$125
Residual heat  $50$50$50
Water-repellent front-door glass$15$15   
Wiper de-icer  $25$25$25
Engine / Motor 
Mid-engine configuration$0$0   
Exterior 
Body kit   $0$0
Glass roof panel(s)    $300
Power convertible top$4000$4000   
Power retractable hardtop  $6750$6750$6750
Retractable rear spoiler$400$400   
Infotainment 
Aux input  $50$50$50
Bluetooth cell phone link  $100$100$100
CD changer, in-dash  $325$325$325
CD changer, remote$200$200   
CD player$125$125   
DVD-compatible player  $0$0$0
HD radio  $50$50$50
iPod integration  $100$100$100
Media drive  $15$15$15
MP3-compatible player  $50$50$50
Satellite radio  $200$200$200
SD Card slot  $25$25$25
Surround sound  $250$250$250
Telematics service, such as OnStar  $200$200$200
Traffic information  $25$25$25
Voice control for nav and audio  $100$100$100
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75   
Automatic headlights  $125$125$125
Cornering lights  $50$50$50
Mirror tilt-down in reverse  $25$25$25
Steering-linked headlights  $150$150$150
Turn signals on or near mirrors  $25$25$25
Seats and Interior Trim 
Cooled or ventilated front seats    $300
Leather-wrapped steering wheel  $150  
Massage, driver seat   $100$100
Massage, passenger seat   $100$100
Memory system, passenger seat  $150$150$150
Neck-level heating, front seats    $150
Power 4-way lumbar adjuster, driver seat$150$150 $150$150
Power 4-way lumbar adjuster, passenger seat   $150$150
Power headrest height adjuster, driver seat  $50$50$50
Power headrest height adjuster, passenger seat  $50$50$50
Power lumbar adjuster, driver seat  $100  
Power lumbar adjuster, passenger seat  $100  
Power seatback bolsters, driver seat$100$100 $100$100
Power seatback bolsters, passenger seat$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
Power thigh support length adjuster, passenger seat  $100$100$100
Synthetic suede headliner   $650$650
Synthetic suede steering wheel$150$150 $150$150
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500   
Adaptive hydraulic struts, auto-leveling and ht. adjustable  $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$16,305$17,655$18,705
Value of Feature Adjustments$0$150$9,800$11,150$12,200
Value of Feature Adjustments0-120-9,128-10,388-11,361

Return to top

Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year20082011
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

Return to top

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%

Option Package Details
Mercedes-Benz SL SL63 AMG

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

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.