Porsche Boxster Porsche Boxster 2008 Mercedes-Benz SL Mercedes-Benz SL 2015

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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: $83,750

Porsche Boxster S   
Difference: $74,675

Lowest Total Invoice: $67,489

Porsche Boxster S   
Difference: $79,912

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820152015
ModelBoxsterSLSL
TrimSSL63 AMGSL65 AMG
Body2dr Convertible2dr Hardtop conv.2dr Hardtop conv.
Base Price $55,700 $148,050 $215,250
Base Invoice $43,512 $137,687 $200,183
Adaptive Sports Seats 3,055    
Xenon HID headlights 1,090    
Auto-dimming rearview mirror 690    
Sport Chrono Package 920    
Adaptive dampers - electrical 1,990    
Wind blocker, small 375    
Metallic paint (extra cost) 690    
Wood trim 890 0 0
Audio controls on steering wheel 990    
Navigation system 3,110    
Floor mats 115    
Heated front seats 480    
Upholstered instrument panel, leather 1,735    
Automatic climate control, front 550    
Illuminated door sill trim plates 725    
Obstacle detection, rear 530    
Synthetic suede steering wheel 1,105 500 0
Ceramic brake rotors 8,150 8,950 8,950
Adaptive Sports Seats 2,597    
Xenon HID headlights 927    
Auto-dimming rearview mirror 587    
Sport Chrono Package 782    
Adaptive dampers - electrical 1,692    
Wind blocker, small 319    
Metallic paint (extra cost) 587    
Wood trim 757 0 0
Audio controls on steering wheel 842    
Navigation system 2,644    
Floor mats 98    
Heated front seats 408    
Upholstered instrument panel, leather 1,475    
Automatic climate control, front 468    
Illuminated door sill trim plates 616    
Obstacle detection, rear 451    
Synthetic suede steering wheel 939 465 0
Ceramic brake rotors 6,928 8,324 8,324
Options (change) 27,190 9,450 8,950
Options (change) 23,117 8,789 8,324
Destination 860 925 925
Gas Tax 0 0 1,300
Total Price $83,750 $158,425 $226,425
Total Invoice $67,489 $147,401 $210,732

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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 S
TrueDelta Adjusted Price Difference: $59,300
TrueDelta Adjusted Invoice Difference: $65,607
Model Year200820152015
ModelBoxsterSLSL
TrimSSL63 AMGSL65 AMG
Body2dr Convertible2dr Hardtop conv.2dr Hardtop conv.
Engine295hp H6577hp V8621hp V12
TransmissionM6T7T7
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)230, 7600, 11900, 12
Tire (rear if not all the same)235/40-18255/35-19255/35-19
Total Price$83,750$158,425$226,425
Adjustments for Features0-15,375-21,675
Feature-Adjusted Total Price$83,750$143,050$204,750
Cost Above Minimum$0$0$61,700
Total Invoice$67,489$147,401$210,732
Adjustments for Features0-14,305-20,173
Feature-Adjusted Total Invoice$67,489$133,096$190,559
Cost Above Minimum$0$0$57,463

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Features Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year200820152015
ModelBoxsterSLSL
TrimSSL63 AMGSL65 AMG
Body2dr Convertible2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manual$150  
7-speed manually-shiftable automatic $1200$1200
RWD$0$0$0
Accessories 
Adaptive cruise control, all-speed  $850
Cruise control$150$150 
Hands-free trunk or liftgate $100$100
Power door closers  $300
Power trunk closer $350$350
Proximity key $250$250
Remote app $25$25
Remote window/roof operation $15$15
Semi-automated parking system $500$500
Tilt/telescoping steering wheel, manual$250  
Tilt/telescoping steering wheel, power $350$350
Wind blocker, power small $300$300
Wind blocker, small$100  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0$0
Auto-raising roll bars / headrests $500$500
Automatic braking, high-speed or partial  $200
Automatic braking, low-speed  $200
Blind spot collision prevention  $150
Blind spot warning system  $200
Brake assist $50$50
Brake- or yaw-sensor-initiated collision preparation system $0 
Driver drowsiness monitor $150$150
Forward collision warning  $200
Knee airbag, driver $75$75
Knee airbag, passenger $75$75
Lane departure prevention  $150
Lane departure warning  $200
Night vision  $1750
Obstacle detection, front $150$150
Radar- or camera-based collision preparation system  $0
Rearview camera $200$200
Roll bar$200  
Side curtain airbags $350$350
Torque vectoring, brake-based $100$100
Cargo Management 
Air-conditioned storage compartment $50$50
Cargo net$40  
Storage compartment under front seat(s) $50$50
Climate Control 
Adaptive windshield washer system $0$0
Automatic air recirculation $100$100
Dual-zone climate control $125$125
Residual heat $50$50
Water-repellent front-door glass$15  
Wiper de-icer $25$25
Drivetrain 
Limited-slip rear differential $300$300
Engine / Motor 
Automatic start / stop $150$150
Mid-engine configuration$0  
Raised top speed limiter $0$0
Exterior 
Electronically-variable tint, sunroof or glass roof panel  $2000
Glass roof panel(s) $300$300
Power convertible top$4000  
Power retractable hardtop $6750$6750
Rear spoiler $200$200
Retractable rear spoiler$400  
Infotainment 
App support $0$0
Aux input $50$50
Bluetooth audio streaming $25$25
Bluetooth cell phone link $100$100
DVD-compatible player $0$0
HD radio $50$50
In-vehicle Internet $150$150
iPod integration $100$100
Media drive $15$15
MP3-compatible player $50$50
Navigation map updates, three years $0$0
Satellite radio $200$200
SD Card slot $25$25
SMS text-to-speech reader $25$25
Surround sound $250$250
Telematics service, such as OnStar, with navigation $225$225
Traffic + travel information $25$25
Voice control for nav and audio $100$100
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200$200
Auto-dimming passenger-side mirror$75  
Automatic headlights $125$125
Cornering lights $50$50
Mirror tilt-down in reverse $25$25
Steering-linked headlights $150$150
Turn signals on or near mirrors $25$25
Seats and Interior Trim 
Automatic seat bolsters, driver $300$300
Automatic seat bolsters, front passenger $300$300
Cooled or ventilated front seats $300$300
Leather headliner  $1000
Massage, driver seat $100$100
Massage, passenger seat $100$100
Memory system, passenger seat $150$150
Neck-level heating, front seats $150$150
Power 4-way lumbar adjuster, passenger seat $150$150
Power headrest height adjuster, driver seat $50$50
Power headrest height adjuster, passenger seat $50$50
Power seatback bolsters, driver seat$100  
Power seatback bolsters, passenger seat$100  
Power thigh bolsters, driver seat$100  
Power thigh bolsters, passenger seat$100  
Power thigh support length adjuster, driver seat $100$100
Power thigh support length adjuster, passenger seat $100$100
Synthetic suede headliner $650 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500  
Adaptive hydraulic struts, auto-leveling and ht. adjustable $4000$4000
Sport suspension (upgrade) $0$0
Transmission 
Launch control $100 
Steering-wheel-mounted transmission controls $100$100
Total Value of Features$6,280$21,655$27,955
Value of Feature Adjustments$0$15,375$21,675
Value of Feature Adjustments0-14,305-20,173

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Specifications Comparison: Porsche Boxster vs. Mercedes-Benz SL

Model Year20082015
ModelBoxsterSL
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in101.8 in
Length170.4 in181.8 in
Width70.9 in73.9 in
Height51.0 in51.8 in
Curb Weight2,856 lb.3,936 lb.
Fuel Capacity17.0 gal.19.8 gal.
Row 1 Headroom38.4 in39.1 in
Row 1 Shoulder Room51.7 in55.5 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in42.9 in
Cargo Volume,
Minimum
9.9 ft38.5 ft3
Cargo Volume,
Maximum
9.913.5 ft3

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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 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
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%
Sport Chrono Package
FeatureValueRequested?
Chronometer100Yes
Electronic systems calibration selector200Yes
Total Requested300100%
Total Not Requested00%

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