Kia Optima Kia Optima 2017 Mazda RX-8 Mazda RX-8 2011

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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: $34,135

Kia Optima SX   
Difference: $2,105

Lowest Total Invoice: $31,758

Kia Optima SX   
Difference: $1,668

Calculate Payments

  Down Payment Interest Rate Term
Model Year201720172011
ModelOptimaOptimaRX-8
TrimSXSX LimitedGrand Touring
Body4dr Sedan4dr Sedan4dr Coupe
Base Price $26,855 $36,090 $32,260
Base Invoice $25,023 $33,481 $29,878
SX Base Package 3,085    
Launch Edition 2,900    
Cargo net 50 50 40
Universal garage door opener 350 350  
6-speed shiftable automatic     700
Cargo mat     50
Temporary spare tire     395
Navigation system     2,000
SX Base Package 2,842    
Launch Edition 2,665    
Cargo net 42 42 32
Universal garage door opener 291 291  
6-speed shiftable automatic     645
Cargo mat     36
Temporary spare tire     320
Navigation system     1,720
Options (change) 6,385 400 3,185
Options (change) 5,840 333 2,753
Destination 895 895 795
Total Price $34,135 $37,385 $36,240
Total Invoice $31,758 $34,709 $33,426

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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: $6,305
TrueDelta Adjusted Invoice Difference: $5,576
Model Year201720172011
ModelOptimaOptimaRX-8
TrimSXSX LimitedGrand Touring
Body4dr Sedan4dr Sedan4dr Coupe
Engine245hp I4245hp I4212hp R2
TransmissionT6T6T6
DrivetrainFWDFWDRWD
EPA Fuel Economy (city/highway)22/31 MPG22/31 MPG16/23 MPG
Audio (watts, speakers)630, 10630, 10300, 9
Tire (rear if not all the same)235/45-18235/45-18225/45-18
Total Price$34,135$37,385$36,240
Adjustments for Features-4,200-6,9750
Feature-Adjusted Total Price$29,935$30,410$36,240
Cost Above Minimum$0$475$0
Total Invoice$31,758$34,709$33,426
Adjustments for Features-3,908-6,4760
Feature-Adjusted Total Invoice$27,850$28,233$33,426
Cost Above Minimum$0$383$0

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Features Comparison: Kia Optima vs. Mazda RX-8

Model Year201720172011
ModelOptimaOptimaRX-8
TrimSXSX LimitedGrand Touring
Body4dr Sedan4dr Sedan4dr Coupe
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100
FWD$0$0 
RWD  $0
Accessories 
Adaptive cruise control, all-speed $850 
Cruise control$150 $150
Heated steering wheel$100$100 
Power rear side windows$200$200 
Proximity trunk or liftgate opener$125$125 
Sunshades, second row$125$125 
Tilt steering wheel, manual  $150
Tilt/telescoping steering wheel, manual$250$250 
Brakes, Airbags, and Other Safety 
911 assist$25$25 
Active or whiplash-reducing head restraints, front seats$0$0 
Around view cameras $500 
Automatic braking, high-speed or partial $200 
Automatic braking, low-speed $200 
Blind spot warning system$200$200 
Brake assist$50$50 
Cross-traffic warning, rear$100$100 
Forward collision warning $200 
Knee airbag, driver$75$75 
Lane departure warning $200 
Obstacle detection, rear$250$250 
Rearview camera$200  
Rollover sensor$50$50 
Vehicle health reports$0$0 
Cargo Management 
Rear seat pass-through  $100
Second-row high console  $250
Climate Control 
Dual-zone climate control$125$125 
Rain-sensing wipers  $175
Rear air vents$100$100 
Variable intermittent wipers$75$75 
Drivetrain 
Limited-slip rear differential  $300
Exterior 
Laminated front side windows$200$200 
Painted brake calipers (optional)$0$0 
Panoramic sunroof$1200$1200 
Rear spoiler$200$200 
Sunroof  $900
Infotainment 
Android Auto support$100$100 
App support$0$0 
Apple CarPlay support$100$100 
Bluetooth audio streaming$25$25 
CD changer, in-dash  $325
HD radio$50$50 
MP3-compatible player  $50
SMS text-to-speech reader$25$25 
Traffic information$25$25 
USB port$25$25 
Voice control for external devices$0$0 
Voice control for nav and audio$100$100 
Wireless charging station $75 
Instruments, Lights, and Mirrors 
Approach detection$25$25 
Auto-dimming headlights $200 
Compass$0$0 
Fog lights  $125
Interior ambient lighting$150$150 
LED headlights$1000$1000 
Power-folding mirrors$50$50 
Steering-linked headlights$150$150 
Trip computer$150$150 
Turn signals on or near mirrors$25$25 
Xenon HID headlights  $500
Seats and Interior Trim 
Cooled or ventilated front seats$300$300 
Folding second row seats$300$300 
Heated second row seats $200 
Interior trim, special color$0  
Metal pedals$75$75 
Power 4-way lumbar adjuster, driver seat$150$150 
Power fore-aft adjuster, passenger seat$100$100 
Power height adjuster, passenger seat$100$100 
Power lumbar adjuster, driver seat  $100
Power lumbar adjuster, passenger seat$100$100 
Power recliner, passenger seat$100$100 
Power tilt adjuster, passenger seat$100$100 
Suspension, Wheels, and Tires 
Alloy wheels  $350
Chrome-plated alloy wheels $850 
Electronic systems calibration selector$200$200 
Machined alloy wheels$350  
Performance steering system (optional)$0$0 
Sport suspension (upgrade)$0$0 
Total Value of Features$8,775$11,550$4,575
Value of Feature Adjustments$4,200$6,975$0
Value of Feature Adjustments-3,908-6,4760

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Specifications Comparison: Kia Optima vs. Mazda RX-8

Model Year20172011
ModelOptimaRX-8
Body4dr Sedan4dr Coupe
Wheelbase110.4 in106.4 in
Length191.1 in175.6 in
Width73.2 in69.7 in
Height57.7 in52.8 in
Curb Weight3,494 lb.3,094 lb.
Fuel Capacity18.5 gal.15.9 gal.
Row 1 Headroom39.8 in38.2 in
Row 1 Shoulder Room58.1 in54.8 in
Row 1 Hip Room56.0 in53.3 in
Row 1 Legroom45.5 in42.7 in
Row 2 Headroom37.8 in36.8 in
Row 2 Shoulder Room56.4 in54.9 in
Row 2 Hip Room56.0 in48.1 in
Row 2 Legroom35.6 in32.2 in
Cargo Volume15.9 ft37.6 ft3

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Option Package Details
Kia Optima SX

SX Base Package
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Steering-linked headlights150No
Door sill trim plates100Yes
LED headlights1000No
Navigation system600Yes
Voice control for nav and audio100No
Traffic information25No
HD radio50No
Proximity key250Yes
Perimeter approach lighting25No
Approach detection25No
Proximity trunk or liftgate opener125No
Total Requested110042%
Total Not Requested150058%
Launch Edition
FeatureValueRequested?
Surround sound250Yes
Dark-colored headliner (optional)0No
Interior trim, special color0No
Harman/Kardon, 630W, 10 speakers (with subwoofer)350No
Rear reading lights0No
Cooled or ventilated front seats300No
Power recliner, passenger seat100No
Power fore-aft adjuster, passenger seat100No
Power lumbar adjuster, passenger seat100No
Power height adjuster, passenger seat50No
Power tilt adjuster, passenger seat100No
Panoramic sunroof1200No
Interior ambient lighting150No
Obstacle detection, rear250No
Blind spot warning system200No
Rear cross-traffic detection100No
Total Requested2508%
Total Not Requested300092%

Option Package Details
Mazda RX-8 Grand Touring

6-speed manually-shiftable automatic
FeatureValueRequested?
6-speed manually-shiftable automatic0Yes
1.3L R2
OHV-2v
212 hp@7500
159 lb-ft@5500
1000Yes
Steering-wheel-mounted transmission controls100Yes
Total Requested1100100%
Total Not Requested00%

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