Mazda RX-8 Mazda RX-8 2010 Kia Optima Kia Optima 2006

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Mazda RX-8 vs. Kia Optima 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. Kia Optima Invoice Comparison

Lowest Total Price: $22,165

Kia Optima EX   
Difference: $10,545

Lowest Total Invoice: $20,317

Kia Optima EX   
Difference: $9,999

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  Down Payment Interest Rate Term
Model Year20102006
ModelRX-8Optima
TrimGrand TouringEX
Body4dr Coupe4dr Sedan
Base Price $31,960 $19,100
Base Invoice $29,566 $17,605
Leather Package   1,000
Floor mats   85
Rear spoiler   220
Antilock brakes (ABS)   795
CD changer, remote   375
Leather Package   890
Floor mats   65
Rear spoiler   169
Antilock brakes (ABS)   710
CD changer, remote   288
Options (change) 0 2,475
Options (change) 0 2,122
Destination 750 590
Total Price $32,710 $22,165
Total Invoice $30,316 $20,317

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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 Kia Optima 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. Kia Optima

Lowest Adjusted Price and Invoice: Kia Optima EX
TrueDelta Adjusted Price Difference: $8,370
TrueDelta Adjusted Invoice Difference: $7,983
Model Year20102006
ModelRX-8Optima
TrimGrand TouringEX
Body4dr Coupe4dr Sedan
Engine232hp R2138hp I4
TransmissionM6T4
DrivetrainRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)300, 9120, 6
Tire (rear if not all the same)225/45-18205/60-15
Total Price$32,710$22,165
Adjustments for Features-2,1750
Feature-Adjusted Total Price$30,535$22,165
Total Invoice$30,316$20,317
Adjustments for Features-2,0160
Feature-Adjusted Total Invoice$28,300$20,317

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Features Comparison: Mazda RX-8 vs. Kia Optima

Model Year20102006
ModelRX-8Optima
TrimGrand TouringEX
Body4dr Coupe4dr Sedan
Transmission and Drivetrain 
6-speed manual$150 
4-speed manually-shiftable automatic $900
RWD$0 
FWD $0
Accessories 
Power rear side windows $200
Proximity key$250 
Brakes, Airbags, and Other Safety 
Side curtain airbags$350 
Stability control$400 
Tire-pressure monitor$75 
Traction control$100 
Cargo Management 
Overhead sunglass holder$25 
Rear seat pass-through$100 
Second-row high console$250 
Climate Control 
Interior air filter$0 
Rain-sensing wipers$175 
Variable intermittent wipers $75
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Bodyside moldings $75
Bright-finished exhaust tip(s)$25 
Infotainment 
Audio controls on steering wheel$125 
Aux input$50 
Bluetooth cell phone link$100 
Cassette player $50
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
MP3-compatible player$50 
Satellite radio$200 
Surround sound$250 
Instruments, Lights, and Mirrors 
Outside temperature display$50 
Xenon HID headlights$500 
Seats and Interior Trim 
Folding second row seats $300
Heated front seats$200 
Manual lumbar adjuster, driver seat $50
Memory system, driver seat$200 
Power fore-aft adjuster, passenger seat $100
Power lumbar adjuster, driver seat$100 
Power recliner, passenger seat $100
Total Value of Features$4,350$2,175
Value of Feature Adjustments$2,175$0
Value of Feature Adjustments-2,0160

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Specifications Comparison: Mazda RX-8 vs. Kia Optima

Model Year20102006
ModelRX-8Optima
Body4dr Coupe4dr Sedan
Wheelbase106.4 in106.3 in
Length175.6 in185.8 in
Width69.7 in71.5 in
Height52.8 in55.5 in
Curb Weight3,065 lb.3,282 lb.
Fuel Capacity15.9 gal.17.2 gal.
Row 1 Headroom38.2 in39.0 in
Row 1 Shoulder Room54.8 in56.9 in
Row 1 Hip Room53.3 in55.8 in
Row 1 Legroom42.7 in43.3 in
Row 2 Headroom36.8 in37.6 in
Row 2 Shoulder Room54.9 in55.7 in
Row 2 Hip Room48.1 in54.4 in
Row 2 Legroom32.2 in36.2 in
Cargo Volume7.6 ft313.6 ft3

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Option Package Details
Kia Optima EX

Leather Package
FeatureValueRequested?
Leather seating surfaces900Yes
Power recliner, passenger seat100No
Power fore-aft adjuster, passenger seat100No
Total Requested90082%
Total Not Requested20018%

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