Infiniti QX Infiniti QX 2007 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: $16,330

Lowest Total Invoice: $34,260

Kia Optima SX   
Difference: $14,554

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072018
ModelQXOptima
TrimQX56SX
Body4dr SUV4dr Sedan
Base Price $49,950 $30,500
Base Invoice $45,888 $28,380
Adaptive cruise control 800  
Sunroof 1,200  
Cargo mat 80  
Satellite radio 350  
Cargo net 30 50
Limited Package   2,100
Technology Package   3,000
Universal garage door opener   350
Adaptive cruise control 689  
Sunroof 1,034  
Cargo mat 62  
Satellite radio 302  
Cargo net 24 42
Limited Package   1,925
Technology Package   2,727
Universal garage door opener   291
Options (change) 2,460 5,500
Options (change) 2,111 4,985
Destination 815 895
Total Price $53,225 $36,895
Total Invoice $48,814 $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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Infiniti QX 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: Infiniti QX vs. Kia Optima

Lowest Adjusted Price and Invoice: Kia Optima SX
TrueDelta Adjusted Price Difference: $16,675
TrueDelta Adjusted Invoice Difference: $14,874
Model Year20072018
ModelQXOptima
TrimQX56SX
Body4dr SUV4dr Sedan
Engine315hp V8245hp I4
TransmissionA5T6
DrivetrainRWDFWD
EPA Fuel Economy (city/highway)13/19 MPG22/31 MPG
Audio (watts, speakers)265, 10630, 10
Tire (rear if not all the same)265/70-18235/45-18
Total Price$53,225$36,895
Adjustments for Features0-345
Feature-Adjusted Total Price$53,225$36,550
Total Invoice$48,814$34,260
Adjustments for Features0-320
Feature-Adjusted Total Invoice$48,814$33,940

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Features Comparison: Infiniti QX vs. Kia Optima

Model Year20072018
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
Heated steering wheel $100
Power flip-out rear side windows$125 
Power liftgate$350 
Power-adjustable pedals$125 
Proximity key $250
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
Knee airbag, driver $75
Lane departure warning $200
Radar- or camera-based collision preparation system$0 
Rearview camera$200 
Side curtain airbags $350
Side curtain airbags, three rows$500 
Vehicle health reports $0
Cargo Management 
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 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
MP3-compatible player$50 
Rear seat audio controls$25 
SMS text-to-speech reader $25
Surround sound $250
Traffic information $25
Voice control for external devices $0
Voice control for nav and audio $100
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
Folding passenger seat$150 
Folding third row seats$600 
Leather-wrapped steering wheel $150
Manual lumbar adjuster, passenger seat$50 
Manual recliner, second row seats$75 
Power 4-way lumbar adjuster, driver seat $150
Power lumbar adjuster, driver seat$100 
Power lumbar adjuster, passenger seat $100
Wood trim$300 
Wood/leather-wrapped steering wheel$150 
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$9,105$9,450
Value of Feature Adjustments$0$345
Value of Feature Adjustments0-320

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

Specifications Comparison: Infiniti QX vs. Kia Optima

Model Year20072018
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 Weight5,368 lb.3,494 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%
Limited Package
FeatureValueRequested?
Upgraded leather upholstery0No
Heated second row seats200Yes
Sunshades, second row125No
Heated steering wheel100No
Additional chrome trim0No
Special interior trim0No
Dark-colored headliner (optional)0No
Around view cameras300No
Chrome-plated alloy wheels500No
Total Requested20016%
Total Not Requested102584%
Technology Package
FeatureValueRequested?
Auto-dimming headlights200No
Surround sound250No
Lane departure warning200No
Adaptive cruise control, all-speed700No
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Forward collision warning200Yes
Harman/Kardon, 630W, 10 speakers (with subwoofer)350No
Navigation system600Yes
Voice control for nav and audio100No
Traffic information25No
HD radio50No
Total Requested80026%
Total Not Requested227574%

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