Mazda RX-8 Mazda RX-8 2011 Porsche Boxster Porsche Boxster 2008

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Mazda RX-8 vs. Porsche Boxster 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.

Mazda RX-8 vs. Porsche Boxster Invoice Comparison

Lowest Total Price: $35,095

Mazda RX-8 Grand Touring   
Difference: $21,850

Lowest Total Invoice: $32,425

Mazda RX-8 Grand Touring   
Difference: $17,104

Calculate Payments

  Down Payment Interest Rate Term
Model Year201120082008
ModelRX-8BoxsterBoxster
TrimGrand TouringBaseS
Body4dr Coupe2dr Convertible2dr Convertible
Base Price $32,260 $45,800 $55,700
Base Invoice $29,878 $39,923 $43,512
Cargo net 40    
Navigation system 2,000 3,110 3,110
Power Seat Package   1,550 1,550
Auto-dimming rearview mirror   690 690
Metallic paint (extra cost)   690 690
Floor mats   115 115
Heated front seats   480 480
Automatic climate control, front   550 550
Carbon fiber / leather-wrapped steering wheel   1,360 1,360
Xenon HID headlights   1,090 1,090
CD changer, remote   650 650
Cargo net 32    
Navigation system 1,720 2,644 2,644
Power Seat Package   1,318 1,318
Auto-dimming rearview mirror   587 587
Metallic paint (extra cost)   587 587
Floor mats   98 98
Heated front seats   408 408
Automatic climate control, front   468 468
Carbon fiber / leather-wrapped steering wheel   1,156 1,156
Xenon HID headlights   927 927
CD changer, remote   553 553
Options (change) 2,040 10,285 10,285
Options (change) 1,752 8,746 8,746
Destination 795 860 860
Total Price $35,095 $56,945 $66,845
Total Invoice $32,425 $49,529 $53,118

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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 Mazda RX-8 dealer quotes or Porsche Boxster dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Mazda RX-8 vs. Porsche Boxster

Lowest Adjusted Price and Invoice: Mazda RX-8 Grand Touring
TrueDelta Adjusted Price Difference: $19,470
TrueDelta Adjusted Invoice Difference: $15,034
Model Year201120082008
ModelRX-8BoxsterBoxster
TrimGrand TouringBaseS
Body4dr Coupe2dr Convertible2dr Convertible
Engine232hp R2245hp H6295hp H6
TransmissionM6M5M6
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 950, 4230, 7
Tire (rear if not all the same)225/45-18205/55-17235/40-18
Total Price$35,095$56,945$66,845
Adjustments for Features0-2,380-2,530
Feature-Adjusted Total Price$35,095$54,565$64,315
Cost Above Minimum$0$0$9,750
Total Invoice$32,425$49,529$53,118
Adjustments for Features0-2,070-2,010
Feature-Adjusted Total Invoice$32,425$47,459$51,108
Cost Above Minimum$0$0$3,649

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Features Comparison: Mazda RX-8 vs. Porsche Boxster

Model Year201120082008
ModelRX-8BoxsterBoxster
TrimGrand TouringBaseS
Body4dr Coupe2dr Convertible2dr Convertible
Transmission and Drivetrain 
6-speed manual$150 $150
5-speed manual $0 
RWD$0$0$0
Accessories 
Proximity key$250  
Tilt steering wheel, manual$150  
Tilt/telescoping steering wheel, manual $250$250
Brakes, Airbags, and Other Safety 
Roll bar $200$200
Side curtain airbags$350  
Cargo Management 
Overhead sunglass holder$25  
Rear seat pass-through$100  
Second-row high console$250  
Climate Control 
Heated windshield washer nozzles $15$15
Water-repellent front-door glass $15$15
Drivetrain 
Limited-slip rear differential$300  
Engine / Motor 
Mid-engine configuration $0$0
Exterior 
Power convertible top $4000$4000
Rear spoiler$200  
Retractable rear spoiler $400$400
Sunroof$900  
Infotainment 
Aux input$50  
Bluetooth cell phone link$100  
CD changer, in-dash$325  
CD changer, remote $200$200
CD player $125$125
MP3-compatible player$50  
Satellite radio$200  
Surround sound$250  
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75$75
Auto-dimming passenger-side mirror $75$75
Automatic headlights$125  
Fog light, rear $100$100
Headlight washers $50$50
Interior ambient lighting $150$150
Trip computer $150$150
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel $150$150
Center armrest(s), second row$50  
Leather door panel trim $250$250
Leather-wrapped steering wheel$150  
No leather in second row $-300$-300
Power 4-way lumbar adjuster, driver seat $150$150
Power fore-aft adjuster, passenger seat $100$100
Power height adjuster, passenger seat $100$100
Power lumbar adjuster, driver seat$100  
Power recliner, passenger seat $100$100
Power tilt adjuster, passenger seat $100$100
Total Value of Features$4,075$6,455$6,605
Value of Feature Adjustments$0$2,380$2,530
Value of Feature Adjustments0-2,070-2,010

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Specifications Comparison: Mazda RX-8 vs. Porsche Boxster

Model Year20112008
ModelRX-8Boxster
Body4dr Coupe2dr Convertible
Wheelbase106.4 in95.1 in
Length175.6 in170.4 in
Width69.7 in70.9 in
Height52.8 in51.0 in
Curb Weight3,065 lb.2,856 lb.
Fuel Capacity15.9 gal.17.0 gal.
Row 1 Headroom38.2 in38.4 in
Row 1 Shoulder Room54.8 in51.7 in
Row 1 Hip Room53.3 in53.4 in
Row 1 Legroom42.7 in41.6 in
Row 2 Headroom36.8 in0.0 in
Row 2 Shoulder Room54.9 in0.0 in
Row 2 Hip Room48.1 in0.0 in
Row 2 Legroom32.2 in0.0 in
Cargo Volume7.6 ft39.9 ft3

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Option Package Details
Porsche Boxster

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75No
Auto-dimming passenger-side mirror75No
Total Requested25063%
Total Not Requested15037%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Power Seat Package
FeatureValueRequested?
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150No
Power fore-aft adjuster, passenger seat100No
Memory system, driver seat200Yes
Power height adjuster, passenger seat50No
Power tilt adjuster, passenger seat100No
Total Requested45053%
Total Not Requested40047%

Option Package Details
Porsche Boxster S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75No
Auto-dimming passenger-side mirror75No
Total Requested25063%
Total Not Requested15037%
Carbon fiber / leather-wrapped steering wheel
FeatureValueRequested?
Carbon fiber / leather-wrapped steering wheel0No
Audio controls on steering wheel125Yes
Total Requested125100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50091%
Total Not Requested509%
Power Seat Package
FeatureValueRequested?
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150No
Power fore-aft adjuster, passenger seat100No
Memory system, driver seat200Yes
Power height adjuster, passenger seat50No
Power tilt adjuster, passenger seat100No
Total Requested45053%
Total Not Requested40047%

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