Porsche Boxster Porsche Boxster 2014 Mazda RX-8 Mazda RX-8 2006

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

Join Us

Porsche Boxster vs. Mazda RX-8 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. Mazda RX-8 Invoice Comparison

Lowest Total Price: $33,560

Mazda RX-8 Base (manual)   
Difference: $25,070

Calculate Payments

  Down Payment Interest Rate Term
Model Year2014201420062006
ModelBoxsterBoxsterRX-8RX-8
TrimBaseSBase (automatic)Base (manual)
Body2dr Convertible2dr Convertible4dr Coupe4dr Coupe
Base Price $50,400 $62,100 $26,435 $26,435
Porsche Dynamic Light System 1,560      
Torque vectoring, brake-based 1,320 1,320    
Adaptive dampers - electrical 1,790 1,790    
Metallic paint (extra cost) 710 710    
Audio controls on steering wheel 615 615    
CD changer, in-dash 570 570    
Satellite radio 670 670    
Shinka Package     6,885 6,165
Cargo net     40 40
Rear spoiler     360 360
Porsche Dynamic Light System 0      
Torque vectoring, brake-based 0 0    
Adaptive dampers - electrical 0 0    
Metallic paint (extra cost) 0 0    
Audio controls on steering wheel 0 0    
CD changer, in-dash 0 0    
Satellite radio 0 0    
Shinka Package     5,923 5,304
Cargo net     32 32
Rear spoiler     288 288
Options (change) 7,235 5,675 7,285 6,565
Options (change) 0 0 6,243 5,624
Destination 995 995 560 560
Total Price $58,630 $68,770 $34,280 $33,560

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 Mazda RX-8 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. Mazda RX-8

Lowest Adjusted Price: Mazda RX-8 Base (automatic)
Lowest Adjusted Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $21,385
TrueDelta Adjusted Invoice Difference: $29,376
Model Year2014201420062006
ModelBoxsterBoxsterRX-8RX-8
TrimBaseSBase (automatic)Base (manual)
Body2dr Convertible2dr Convertible4dr Coupe4dr Coupe
Engine265hp H6315hp H6212hp R2238hp R2
TransmissionM6M6T6M6
DrivetrainRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)50, 4185, 7300, 9300, 9
Tire (rear if not all the same)235/45-18235/40-19225/45-18225/45-18
Total Price$58,630$68,770$34,280$33,560
Adjustments for Features-4,015-3,815-1,0500
Feature-Adjusted Total Price$54,615$64,955$33,230$33,560
Cost Above Minimum$0$10,340$0$330

Return to top

Features Comparison: Porsche Boxster vs. Mazda RX-8

Model Year2014201420062006
ModelBoxsterBoxsterRX-8RX-8
TrimBaseSBase (automatic)Base (manual)
Body2dr Convertible2dr Convertible4dr Coupe4dr Coupe
Transmission and Drivetrain 
6-speed manual$150$150 $150
6-speed manually-shiftable automatic  $1100 
RWD$0$0$0$0
Accessories 
Proximity key  $250$250
Tilt steering wheel, manual  $150$150
Tilt/telescoping steering wheel, manual$250$250  
Brakes, Airbags, and Other Safety 
Brake assist$50$50  
Knee airbag, driver$75$75  
Knee airbag, passenger$75$75  
Roll bar$200$200  
Torque vectoring, brake-based$100$100  
Cargo Management 
Overhead sunglass holder  $25$25
Rear seat pass-through  $100$100
Second-row high console  $250$250
Climate Control 
Heated windshield washer nozzles$15$15  
Engine / Motor 
Automatic start / stop$150$150  
Mid-engine configuration$0$0  
Regenerative braking$0$0  
Exterior 
Power convertible top$4000$4000  
Rear spoiler  $200$200
Retractable rear spoiler$400$400  
Sunroof  $900$900
Infotainment 
Aux input$50$50  
Bluetooth audio streaming$25$25  
Bluetooth cell phone link$100$100  
MP3-compatible player$50$50  
Instruments, Lights, and Mirrors 
Auto-dimming rearview mirror  $150$150
Automatic headlights$125$125  
Fog light, rear$100$100  
Fog lights  $125$125
Headlight washers$50   
Steering-linked headlights$150   
Trip computer$150$150  
Seats and Interior Trim 
Center armrest(s), second row  $50$50
Heated front seats  $200$200
Manual height adjuster, driver seat$50$50  
Manual height adjuster, passenger seat$50$50  
Power fore-aft adjuster, driver seat  $100$100
Power height adjuster, driver seat  $100$100
Power lumbar adjuster, driver seat  $100$100
Power recliner, passenger seat$100$100  
Power tilt adjuster, driver seat  $100$100
Synthetic suede inserts in leather seating surfaces  $0$0
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500  
Alloy wheels$350$350  
Polished alloy wheels  $350$350
Sport suspension (upgrade)  $0$0
Transmission 
Steering-wheel-mounted transmission controls  $100 
Total Value of Features$7,315$7,115$4,350$3,300
Value of Feature Adjustments$4,015$3,815$1,050$0
Value of Feature Adjustments-68-55-9580

Return to top

Specifications Comparison: Porsche Boxster vs. Mazda RX-8

Model Year20142006
ModelBoxsterRX-8
Body2dr Convertible4dr Coupe
Wheelbase97.4 in106.4 in
Length172.2 in174.3 in
Width70.9 in69.7 in
Height50.5 in52.8 in
Curb Weight2,889 lb.3,046 lb.
Fuel Capacity16.9 gal.15.9 gal.
Row 1 Headroom38.6 in38.2 in
Row 1 Shoulder Room51.7 in54.8 in
Row 1 Hip Room53.4 in53.3 in
Row 1 Legroom42.6 in42.7 in
Row 2 Headroom0.0 in36.8 in
Row 2 Shoulder Room0.0 in54.9 in
Row 2 Hip Room0.0 in48.1 in
Row 2 Legroom0.0 in32.2 in
Cargo Volume9.9 ft37.6 ft3

Return to top

Option Package Details
Porsche Boxster

Porsche Dynamic Light System
FeatureValueRequested?
Steering-linked headlights150No
Xenon HID headlights500Yes
Headlight washers50No
Total Requested50071%
Total Not Requested20029%

Option Package Details
Mazda RX-8 Base (automatic)

Shinka Package
FeatureValueRequested?
Leather seating surfaces900Yes
CD changer, in-dash200Yes
Satellite radio200Yes
Synthetic suede inserts in leather seating surfaces0No
Polished alloy wheels0No
Paint, special0No
Water-repellent front-door glass15Yes
Comfort suspension (upgrade)0No
Heated mirrors25Yes
Heated front seats200No
Power fore-aft adjuster, driver seat100No
Power height adjuster, driver seat50No
Power tilt adjuster, driver seat100No
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100No
Proximity key250No
Traction control100Yes
Stability control400Yes
Fog lights125No
Xenon HID headlights500Yes
Sunroof900No
Universal garage door opener100Yes
Auto-dimming rearview mirror150No
Bose, 300W, 9 speakers350No
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300Yes
225/45ZR18 tires400No
Total Requested284047%
Total Not Requested322553%

Option Package Details
Mazda RX-8 Base (manual)

Shinka Package
FeatureValueRequested?
Leather seating surfaces900Yes
CD changer, in-dash200Yes
Satellite radio200Yes
Synthetic suede inserts in leather seating surfaces0No
Polished alloy wheels0No
Paint, special0No
Water-repellent front-door glass15Yes
Comfort suspension (upgrade)0No
Heated mirrors25Yes
Heated front seats200No
Power fore-aft adjuster, driver seat100No
Power height adjuster, driver seat50No
Power tilt adjuster, driver seat100No
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100No
Proximity key250No
Traction control100Yes
Stability control400Yes
Fog lights125No
Xenon HID headlights500Yes
Sunroof900No
Universal garage door opener100Yes
Auto-dimming rearview mirror150No
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested254048%
Total Not Requested272552%

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.