Kia Optima Kia Optima 2013 Mazda RX-8 Mazda RX-8 2008

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Kia Optima 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.

Kia Optima vs. Mazda RX-8 Invoice Comparison

Lowest Total Price: $31,950

Kia Optima SX   
Difference: $3,230

Lowest Total Invoice: $29,725

Kia Optima SX   
Difference: $2,550

Calculate Payments

  Down Payment Interest Rate Term
Model Year20132008
ModelOptimaRX-8
TrimSXManual
Body4dr Sedan4dr Coupe
Base Price $26,800 $26,435
Base Invoice $25,040 $24,458
Premium Package 2,950  
Navigation system 1,400 2,000
Grand Touring Package   4,635
Body kit   1,100
Rear spoiler   360
Premium Package 2,635  
Navigation system 1,250 1,721
Grand Touring Package   4,277
Body kit   881
Rear spoiler   288
Options (change) 4,350 8,095
Options (change) 3,885 7,167
Destination 800 650
Total Price $31,950 $35,180
Total Invoice $29,725 $32,275

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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 Kia Optima dealer quotes or Mazda RX-8 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Kia Optima vs. Mazda RX-8

Lowest Adjusted Price and Invoice: Kia Optima SX
TrueDelta Adjusted Price Difference: $6,880
TrueDelta Adjusted Invoice Difference: $5,946
Model Year20132008
ModelOptimaRX-8
TrimSXManual
Body4dr Sedan4dr Coupe
Engine274hp I4232hp R2
TransmissionT6M6
DrivetrainFWDRWD
EPA Fuel Economy (city/highway)22/34 MPG16/22 MPG
Audio (watts, speakers)550, 12300, 9
Tire (rear if not all the same)225/45-18225/45-18
Total Price$31,950$35,180
Adjustments for Features-3,6500
Feature-Adjusted Total Price$28,300$35,180
Total Invoice$29,725$32,275
Adjustments for Features-3,3960
Feature-Adjusted Total Invoice$26,329$32,275

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Features Comparison: Kia Optima vs. Mazda RX-8

Model Year20132008
ModelOptimaRX-8
TrimSXManual
Body4dr Sedan4dr Coupe
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
6-speed manual $150
FWD$0 
RWD $0
Accessories 
Power rear side windows$200 
Tilt steering wheel, manual $150
Tilt/telescoping steering wheel, manual$250 
Brakes, Airbags, and Other Safety 
911 assist$25 
Active or whiplash-reducing head restraints, front seats$0 
Brake assist$50 
Rearview camera$200 
Vehicle health reports$0 
Cargo Management 
Air-conditioned storage compartment$50 
Rear seat pass-through $100
Second-row high console $250
Climate Control 
Automatic climate control, front$200 
Dual-zone climate control$125 
Rear air vents$100 
Drivetrain 
Limited-slip rear differential $300
Exterior 
Panoramic sunroof$1200 
Sunroof $900
Infotainment 
App support$0 
Aux input$50 
Bluetooth audio streaming$25 
Bluetooth cell phone link$100 
CD changer, in-dash $325
CD player$125 
HD radio$50 
MP3-compatible player$50 
Satellite radio$200 
Traffic information$25 
USB port$25 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Automatic headlights$125 
Compass$0 
Interior ambient lighting$150 
Power-folding mirrors$50 
Speaker lights$100 
Trip computer$150 
Turn signals on or near mirrors$25 
Seats and Interior Trim 
Aluminum trim$100 
Cooled or ventilated front seats$300 
Door sill trim plates $100
Floor mats $75
Folding second row seats$300 
Heated second row seats$200 
Illuminated door sill trim plates$200 
Leather seating surfaces $900
Memory system, driver seat$200 
Partial leather seating sufaces$450 
Power fore-aft adjuster, passenger seat$100 
Power recliner, passenger seat$100 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$6,900$3,250
Value of Feature Adjustments$3,650$0
Value of Feature Adjustments-3,3960

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Specifications Comparison: Kia Optima vs. Mazda RX-8

Model Year20132008
ModelOptimaRX-8
Body4dr Sedan4dr Coupe
Wheelbase110.0 in106.4 in
Length190.7 in174.3 in
Width72.1 in69.7 in
Height57.3 in52.8 in
Curb Weight3,385 lb.3,045 lb.
Fuel Capacity18.5 gal.15.9 gal.
Row 1 Headroom40.0 in38.2 in
Row 1 Shoulder Room57.2 in54.8 in
Row 1 Hip Room54.7 in53.3 in
Row 1 Legroom45.5 in42.7 in
Row 2 Headroom37.6 in36.8 in
Row 2 Shoulder Room55.7 in54.9 in
Row 2 Hip Room54.5 in48.1 in
Row 2 Legroom34.7 in32.2 in
Cargo Volume15.4 ft37.6 ft3

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Option Package Details
Kia Optima SX

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Heated second row seats200No
Cooled or ventilated front seats300No
Power recliner, passenger seat100No
Power fore-aft adjuster, passenger seat100No
Memory system, driver seat200No
Panoramic sunroof1200No
Power-folding mirrors50No
HD radio50No
Infinity, 550W, 12 speakers (with subwoofer)350No
SMS text-to-speech reader25No
Vehicle health reports0No
911 assist25No
Bluetooth audio streaming25No
Media drive, small5No
App support0No
Rearview camera200No
Voice control for external devices0No
Total Requested2007%
Total Not Requested283093%

Option Package Details
Mazda RX-8 Manual

Grand Touring Package
FeatureValueRequested?
Leather seating surfaces900No
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 Requested320063%
Total Not Requested185037%

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