Mazda RX-8 Mazda RX-8 2007 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: $10,085

Lowest Total Invoice: $20,317

Kia Optima EX   
Difference: $9,481

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  Down Payment Interest Rate Term
Model Year200720072006
ModelRX-8RX-8Optima
TrimAutomaticManualEX
Body4dr Coupe4dr Coupe4dr Sedan
Base Price $26,435 $26,435 $19,100
Base Invoice $24,458 $24,458 $17,605
Grand Touring Package 5,335 4,635  
Rear spoiler 360 360 220
Cassette player 225 225  
Leather Package     1,000
Floor mats     85
Antilock brakes (ABS)     795
CD changer, remote     375
Grand Touring Package 4,922 4,277  
Rear spoiler 288 288 169
Cassette player 180 180  
Leather Package     890
Floor mats     65
Antilock brakes (ABS)     710
CD changer, remote     288
Options (change) 5,920 5,220 2,475
Options (change) 5,390 4,745 2,122
Destination 595 595 590
Total Price $32,950 $32,250 $22,165
Total Invoice $30,443 $29,798 $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: $8,785
TrueDelta Adjusted Invoice Difference: $8,278
Model Year200720072006
ModelRX-8RX-8Optima
TrimAutomaticManualEX
Body4dr Coupe4dr Coupe4dr Sedan
Engine212hp R2232hp R2138hp I4
TransmissionT6M6T4
DrivetrainRWDRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 9300, 9120, 6
Tire (rear if not all the same)225/45-18225/45-18205/60-15
Total Price$32,950$32,250$22,165
Adjustments for Features-2,000-9500
Feature-Adjusted Total Price$30,950$31,300$22,165
Cost Above Minimum$0$350$0
Total Invoice$30,443$29,798$20,317
Adjustments for Features-1,848-8780
Feature-Adjusted Total Invoice$28,595$28,920$20,317
Cost Above Minimum$0$325$0

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Features Comparison: Mazda RX-8 vs. Kia Optima

Model Year200720072006
ModelRX-8RX-8Optima
TrimAutomaticManualEX
Body4dr Coupe4dr Coupe4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100  
6-speed manual $150 
4-speed manually-shiftable automatic  $900
RWD$0$0 
FWD  $0
Accessories 
Power rear side windows  $200
Proximity key$250$250 
Brakes, Airbags, and Other Safety 
Side curtain airbags$350$350 
Stability control$400$400 
Tire-pressure monitor$75$75 
Traction control$100$100 
Cargo Management 
Overhead sunglass holder$25$25 
Rear seat pass-through$100$100 
Second-row high console$250$250 
Climate Control 
Automatic climate control, front  $200
Interior air filter$0$0 
Drivetrain 
Limited-slip rear differential$300$300 
Exterior 
Bodyside moldings  $75
Bright-finished exhaust tip(s)$25$25 
Infotainment 
Audio controls on steering wheel$125$125 
CD changer, in-dash$325$325 
CD changer, remote  $200
CD player  $125
Instruments, Lights, and Mirrors 
Automatic headlights  $125
Outside temperature display$50$50 
Xenon HID headlights$500$500 
Seats and Interior Trim 
Folding second row seats  $300
Heated front seats$200$200 
Manual lumbar adjuster, driver seat  $50
Power fore-aft adjuster, passenger seat  $100
Power lumbar adjuster, driver seat$100$100 
Power recliner, passenger seat  $100
Suspension, Wheels, and Tires 
Sport suspension (upgrade)$0$0 
Transmission 
Steering-wheel-mounted transmission controls$100  
Total Value of Features$4,375$3,325$2,375
Value of Feature Adjustments$2,000$950$0
Value of Feature Adjustments-1,848-8780

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Specifications Comparison: Mazda RX-8 vs. Kia Optima

Model Year20072006
ModelRX-8Optima
Body4dr Coupe4dr Sedan
Wheelbase106.4 in106.3 in
Length174.3 in185.8 in
Width69.7 in71.5 in
Height52.8 in55.5 in
Curb Weight3,046 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
Mazda RX-8 Automatic

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100No
Proximity key250No
Traction control100No
Stability control400No
Fog lights125Yes
Xenon HID headlights500No
Sunroof900Yes
CD changer, in-dash200Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Bose, 300W, 9 speakers350No
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300No
225/45ZR18 tires400No
Total Requested275047%
Total Not Requested310053%

Option Package Details
Mazda RX-8 Manual

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900Yes
Heated mirrors25Yes
Heated front seats200No
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power lumbar adjuster, driver seat100No
Proximity key250No
Traction control100No
Stability control400No
Fog lights125Yes
Xenon HID headlights500No
Sunroof900Yes
CD changer, in-dash200Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Bose, 300W, 9 speakers350No
225/45ZR18 tires400No
Total Requested275054%
Total Not Requested230046%

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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