Mazda RX-8 Mazda RX-8 2008 Infiniti Q50 Infiniti Q50 2014

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

Join Us

Mazda RX-8 vs. Infiniti Q50 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. Infiniti Q50 Invoice Comparison

Lowest Total Price: $34,643

Mazda RX-8 Manual   
Difference: $10,152

Lowest Total Invoice: $31,844

Mazda RX-8 Manual   
Difference: $9,765

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820142014
ModelRX-8Q50Q50
TrimManual3.7 PremiumS 3.7
Body4dr Coupe4dr Sedan4dr Sedan
Base Price $26,435 $40,000 $43,650
Base Invoice $24,458 $37,200 $40,595
Grand Touring Package 4,635    
Navigation system 2,000    
Temporary spare tire 395 200 200
Cargo mat 50    
Cargo net 40    
Rear spoiler 360 860 860
All-weather floor mats 78 230 230
Cargo Package   200 200
Navigation Package   1,400 1,400
Leather seating surfaces   1,000  
Grand Touring Package 4,277    
Navigation system 1,721    
Temporary spare tire 320 186 186
Cargo mat 36    
Cargo net 32    
Rear spoiler 288 762 762
All-weather floor mats 62 175 175
Cargo Package   149 149
Navigation Package   1,302 1,302
Leather seating surfaces   930  
Options (change) 7,558 3,890 2,890
Options (change) 6,736 3,504 2,574
Destination 650 905 905
Total Price $34,643 $44,795 $47,445
Total Invoice $31,844 $41,609 $44,074

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 Mazda RX-8 dealer quotes or Infiniti Q50 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: Mazda RX-8 vs. Infiniti Q50

Lowest Adjusted Price and Invoice: Mazda RX-8 Manual
TrueDelta Adjusted Price Difference: $6,022
TrueDelta Adjusted Invoice Difference: $5,929
Model Year200820142014
ModelRX-8Q50Q50
TrimManual3.7 PremiumS 3.7
Body4dr Coupe4dr Sedan4dr Sedan
Engine232hp R2328hp V6328hp V6
TransmissionM6T7T7
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)16/22 MPG20/30 MPG20/30 MPG
Audio (watts, speakers)300, 9?, 14?, 14
Tire (rear if not all the same)225/45-18225/55-17245/40-19
Total Price$34,643$44,795$47,445
Adjustments for Features0-4,130-4,505
Feature-Adjusted Total Price$34,643$40,665$42,940
Cost Above Minimum$0$0$2,275
Total Invoice$31,844$41,609$44,074
Adjustments for Features0-3,836-4,185
Feature-Adjusted Total Invoice$31,844$37,773$39,889
Cost Above Minimum$0$0$2,116

Return to top

Features Comparison: Mazda RX-8 vs. Infiniti Q50

Model Year200820142014
ModelRX-8Q50Q50
TrimManual3.7 PremiumS 3.7
Body4dr Coupe4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150  
7-speed manually-shiftable automatic $1200$1200
RWD$0$0$0
Accessories 
Power rear side windows $200$200
Remote app $25$25
Remote window/roof operation $15$15
Tilt steering wheel, manual$150  
Tilt/telescoping steering wheel, manual $250$250
Brakes, Airbags, and Other Safety 
Brake assist $50$50
Rearview camera $200$200
Tires, run-flat $150$150
Torque vectoring, brake-based $100$100
Cargo Management 
Cargo tray $40$40
Second-row high console$250  
Climate Control 
Automatic climate control, front $200$200
Dual-zone climate control $125$125
Rear air vents $100$100
Drivetrain 
Limited-slip rear differential$300  
Exterior 
Black grille (optional) $0$0
Self-repairing paint $0$0
Infotainment 
App support $0$0
Aux input $50$50
Bluetooth audio streaming $25$25
Bluetooth cell phone link $100$100
CD changer, in-dash$325  
CD player $125$125
Concierge Services - 4 year subscription $200$200
HD radio $50$50
MP3-compatible player $50$50
Satellite radio $200$200
SMS text-to-speech reader $25$25
Surround sound $250$250
Telematics service, such as OnStar $200$200
Traffic + travel information $25$25
USB port $25$25
Voice control for nav and audio $100$100
Instruments, Lights, and Mirrors 
Automatic headlights $125$125
LED headlights $1000$1000
Trip computer $150$150
Turn signals on or near mirrors $25$25
Xenon HID headlights$500  
Seats and Interior Trim 
Aluminum trim $100$100
Manual thigh support length adjuster, driver seat  $50
Manual thigh support length adjuster, passenger seat  $50
Metal pedals$75 $75
Power fore-aft adjuster, passenger seat $100$100
Power height adjuster, passenger seat $100$100
Power recliner, passenger seat $100$100
Power seatback bolsters, driver seat  $100
Power tilt adjuster, passenger seat $100$100
Suspension, Wheels, and Tires 
Alloy wheels$350 $350
Machined alloy wheels $350 
Performance steering system (optional)  $0
Sport suspension (upgrade)$0 $0
Transmission 
Steering-wheel-mounted transmission controls  $100
Total Value of Features$2,100$6,230$6,605
Value of Feature Adjustments$0$4,130$4,505
Value of Feature Adjustments0-3,836-4,185

Return to top

Specifications Comparison: Mazda RX-8 vs. Infiniti Q50

Model Year20082014
ModelRX-8Q50
Body4dr Coupe4dr Sedan
Wheelbase106.4 in112.2 in
Length174.3 in188.3 in
Width69.7 in71.8 in
Height52.8 in56.8 in
Curb Weight3,045 lb.3,574 lb.
Fuel Capacity15.9 gal.20.0 gal.
Row 1 Headroom38.2 in40.2 in
Row 1 Shoulder Room54.8 in56.7 in
Row 1 Hip Room53.3 in53.2 in
Row 1 Legroom42.7 in44.5 in
Row 2 Headroom36.8 in37.5 in
Row 2 Shoulder Room54.9 in56.1 in
Row 2 Hip Room48.1 in52.5 in
Row 2 Legroom32.2 in35.1 in
Cargo Volume7.6 ft313.5 ft3

Return to top

Option Package Details
Mazda RX-8 Manual

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100Yes
Proximity key250Yes
Traction control100Yes
Stability control400Yes
Fog lights125Yes
Xenon HID headlights500Yes
Sunroof900Yes
CD changer, in-dash200No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested410081%
Total Not Requested95019%

Option Package Details
Infiniti Q50 3.7 Premium

Leather seating surfaces
FeatureValueRequested?
Leather seating surfaces900Yes
Power lumbar adjuster, driver seat50Yes
Total Requested950100%
Total Not Requested00%
All-weather floor mats
FeatureValueRequested?
All-weather floor mats75Yes
Cargo tray40No
Total Requested7565%
Total Not Requested4035%
Rear spoiler
FeatureValueRequested?
Rear spoiler200Yes
Black grille (optional)0No
Total Requested200100%
Total Not Requested00%
Cargo Package
FeatureValueRequested?
Cargo net40Yes
Cargo mat40Yes
First-aid kit15No
Total Requested8084%
Total Not Requested1516%
Navigation Package
FeatureValueRequested?
Navigation system600Yes
Telematics service, such as OnStar200No
Voice control for nav and audio75No
Traffic + travel information25No
Remote app25No
Total Requested60065%
Total Not Requested32535%

Option Package Details
Infiniti Q50 S 3.7

All-weather floor mats
FeatureValueRequested?
All-weather floor mats75Yes
Cargo tray40No
Total Requested7565%
Total Not Requested4035%
Rear spoiler
FeatureValueRequested?
Rear spoiler200Yes
Black grille (optional)0No
Total Requested200100%
Total Not Requested00%
Cargo Package
FeatureValueRequested?
Cargo net40Yes
Cargo mat40Yes
First-aid kit15No
Total Requested8084%
Total Not Requested1516%
Navigation Package
FeatureValueRequested?
Navigation system600Yes
Telematics service, such as OnStar200No
Voice control for nav and audio75No
Traffic + travel information25No
Remote app25No
Total Requested60065%
Total Not Requested32535%

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 Coupes
See TrueDelta's information for all Mazda models.