Infiniti QX Infiniti QX 2008 Kia Optima Kia Optima 2018
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Infiniti QX 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.

Infiniti QX vs. Kia Optima Invoice Comparison

Lowest Total Price: $36,895

Kia Optima SX   
Difference: $17,665

Lowest Total Invoice: $34,260

Kia Optima SX   
Difference: $15,854

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082018
ModelQXOptima
TrimQX56SX
Body4dr SUV4dr Sedan
Base Price $52,450 $30,500
Base Invoice $48,180 $28,380
Adaptive cruise control 1,150  
Cargo net 30 50
Cargo mat 65  
Universal garage door opener   350
Technology Package   3,000
Limited Package   2,100
Adaptive cruise control 991  
Cargo net 24 42
Cargo mat 54  
Universal garage door opener   291
Technology Package   2,727
Limited Package   1,925
Options (change) 1,245 5,500
Options (change) 1,069 4,985
Destination 865 895
Total Price $54,560 $36,895
Total Invoice $50,114 $34,260

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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 Infiniti QX dealer quotes or Kia Optima dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Infiniti QX vs. Kia Optima

Lowest Adjusted Price and Invoice: Kia Optima SX
TrueDelta Adjusted Price Difference: $16,280
TrueDelta Adjusted Invoice Difference: $14,582
Model Year20082018
ModelQXOptima
TrimQX56SX
Body4dr SUV4dr Sedan
Engine320hp V8245hp I4
TransmissionA5T6
DrivetrainRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)?, 12630, 10
Tire (rear if not all the same)275/60-20235/45-18
Total Price$54,560$36,895
Adjustments for Features-1,3850
Feature-Adjusted Total Price$53,175$36,895
Total Invoice$50,114$34,260
Adjustments for Features-1,2720
Feature-Adjusted Total Invoice$48,842$34,260

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Features Comparison: Infiniti QX vs. Kia Optima

Model Year20082018
ModelQXOptima
TrimQX56SX
Body4dr SUV4dr Sedan
Transmission and Drivetrain 
5-speed automatic$900 
6-speed manually-shiftable automatic $1100
RWD$0 
FWD $0
Accessories 
Adaptive cruise control$600 
Adaptive cruise control, all-speed $850
Power flip-out rear side windows$125 
Power liftgate$350 
Power-adjustable pedals$125 
Proximity trunk or liftgate opener $125
Remote window/roof operation$15 
Sunshades, second row $125
Tilt steering wheel, power$200 
Tilt/telescoping steering wheel, manual $250
Brakes, Airbags, and Other Safety 
911 assist $25
Around view cameras $500
Automatic braking, high-speed or partial $200
Automatic braking, low-speed $200
Blind spot warning system $200
Cross-traffic warning, rear $100
Full-size spare tire$225 
Knee airbag, driver $75
Lane departure warning $200
Obstacle detection, front$150 
Radar- or camera-based collision preparation system$0 
Rearview camera$200 
Side curtain airbags $350
Side curtain airbags, three rows$500 
Temporary spare tire $150
Vehicle health reports $0
Cargo Management 
Liftglass or two-piece tailgate$150 
Overhead console storage compartments$100 
Removable second-row console$200 
Roof rack$300 
Climate Control 
Rear air vents $100
Rear air vents with manual controls$150 
Rear HVAC unit$400 
Rear wiper$175 
Exterior 
Bodyside cladding$350 
Deep-tinted rear windows$275 
Laminated front side windows $200
Painted brake calipers (optional) $0
Panoramic sunroof $1200
Rear bumper protector$40 
Rear spoiler $200
Running boards$350 
Sunroof$900 
Tow hook(s), front$40 
Wheel-lip moldings$75 
Infotainment 
Android Auto support $100
App support $0
Apple CarPlay support $100
Aux input $50
Bluetooth audio streaming $25
CD changer, in-dash$325 
HD radio $50
Media drive$15 
MP3-compatible player$50 
Rear seat audio controls$25 
Satellite radio $200
Satellite radio - three year subscription$400 
SD Card slot$25 
SMS text-to-speech reader $25
Surround sound $250
USB port $25
Voice control for external devices $0
Instruments, Lights, and Mirrors 
Analog clock$25 
Approach detection $25
Auto-dimming driver-side mirror$75 
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
LED headlights $1000
Steering-linked headlights $150
Transmission temperature gauge$75 
Xenon HID headlights$500 
Seats and Interior Trim 
Cooled or ventilated front seats $300
Door sill trim plates$100 
Folding passenger seat$150 
Leather seating surfaces, third-row seats$200 
Manual lumbar adjuster, passenger seat$50 
Manual recliner, second row seats$75 
Metal pedals $75
Power 4-way lumbar adjuster, driver seat $150
Power lumbar adjuster, driver seat$100 
Power lumbar adjuster, passenger seat $100
Power-folding third row seats$1000 
Wood trim$300 
Suspension, Wheels, and Tires 
Auto-leveling rear shocks$200 
Electronic systems calibration selector $200
Performance steering system (optional) $0
Sport suspension (upgrade) $0
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$10,660$9,275
Value of Feature Adjustments$1,385$0
Value of Feature Adjustments-1,2720

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See a complete comparison of Infiniti QX vs. Kia Optima features.

Specifications Comparison: Infiniti QX vs. Kia Optima

Model Year20082018
ModelQXOptima
Body4dr SUV4dr Sedan
Wheelbase123.2 in110.4 in
Length206.9 in191.1 in
Width78.8 in73.2 in
Height77.0 in57.7 in
Curb Weight5,598 lb.3,220 lb.
Fuel Capacity28.0 gal.18.5 gal.
Row 1 Headroom41.0 in39.8 in
Row 1 Shoulder Room65.1 in58.1 in
Row 1 Hip Room61.3 in56.0 in
Row 1 Legroom41.8 in45.5 in
Row 2 Headroom40.0 in37.8 in
Row 2 Shoulder Room64.5 in56.4 in
Row 2 Hip Room60.1 in56.0 in
Row 2 Legroom41.9 in35.6 in
Row 3 Headroom35.9 in0.0 in
Row 3 Shoulder Room63.7 in0.0 in
Row 3 Hip Room48.8 in0.0 in
Row 3 Legroom32.2 in0.0 in
Cargo Volume,
Minimum		20.0 ft315.9 ft3
Cargo Volume,
Behind R2		61.2 ft315.9 ft3
Cargo Volume,
Maximum		97.1 ft315.9 ft3

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See a complete comparison of Infiniti QX vs. Kia Optima specs.

Option Package Details
Kia Optima SX

Universal garage door opener
FeatureValueRequested?
Universal garage door opener100Yes
Compass0Yes
Total Requested100100%
Total Not Requested00%
Technology Package
FeatureValueRequested?
Auto-dimming headlights200No
Adaptive cruise control, all-speed700No
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Surround sound250No
Lane departure warning200No
Harman/Kardon, 630W, 10 speakers (with subwoofer)350No
Traffic information25Yes
HD radio50No
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested92530%
Total Not Requested215070%
Limited Package
FeatureValueRequested?
Upgraded leather upholstery0No
Heated second row seats200Yes
Sunshades, second row125No
Heated steering wheel100Yes
Additional chrome trim0No
Special interior trim0No
Dark-colored headliner (optional)0No
Around view cameras300No
Chrome-plated alloy wheels500Yes
Total Requested80065%
Total Not Requested42535%

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