

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.
Lowest Total Price: $35,170 Kia Optima SX | ||
Difference: $8,305 | ||
Lowest Total Invoice: $32,646 Kia Optima SX | ||
Difference: $8,671 | ||
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Model Year | 2018 | 2018 |
Model | RDX | Optima |
Trim | Base | SX |
Body | 4dr SUV | 4dr Sedan |
Base Price | $35,800 | $30,500 |
Base Invoice | $33,995 | $28,380 |
Advance Package | 6,700 | |
Technology Package | 3,000 | |
Universal garage door opener | 350 | |
Remote start | 425 | |
Advance Package | 6,347 | |
Technology Package | 2,727 | |
Universal garage door opener | 291 | |
Remote start | 353 | |
Options (change) | 6,700 | 3,775 |
Options (change) | 6,347 | 3,371 |
Destination | 975 | 895 |
Total Price | $43,475 | $35,170 |
Total Invoice | $41,317 | $32,646 |
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Want to find out how much dealers are willing to discount these cars? Request free, no-obligation Acura RDX 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. |
Lowest Adjusted Price and Invoice: Kia Optima SX | ||
TrueDelta Adjusted Price Difference: $7,390 | ||
TrueDelta Adjusted Invoice Difference: $7,801 | ||
Model Year | 2018 | 2018 |
Model | RDX | Optima |
Trim | Base | SX |
Body | 4dr SUV | 4dr Sedan |
Engine | 279hp V6 | 245hp I4 |
Transmission | T6 | T6 |
Drivetrain | FWD | FWD |
EPA Fuel Economy (city/highway) | 20/28 MPG | 22/31 MPG |
Audio (watts, speakers) | 410, 10 | 630, 10 |
Tire (rear if not all the same) | 235/60-18 | 235/45-18 |
Total Price | $43,475 | $35,170 |
Adjustments for Features | -915 | 0 |
Feature-Adjusted Total Price | $42,560 | $35,170 |
Total Invoice | $41,317 | $32,646 |
Adjustments for Features | -870 | 0 |
Feature-Adjusted Total Invoice | $40,447 | $32,646 |
Model Year | 2018 | 2018 |
Model | RDX | Optima |
Trim | Base | SX |
Body | 4dr SUV | 4dr Sedan |
Transmission and Drivetrain | ||
6-speed manually-shiftable automatic | $1100 | $1100 |
FWD | $0 | $0 |
Accessories | ||
Active noise reduction | $0 | |
Power liftgate | $350 | |
Proximity trunk or liftgate opener | $125 | |
Remote window/roof operation | $15 | |
Brakes, Airbags, and Other Safety | ||
911 assist | $25 | |
Knee airbag, driver | $75 | |
Lane keeping assist | $400 | |
Obstacle detection, front | $150 | |
Pedestrian detection | $50 | |
Radar- or camera-based collision preparation system | $0 | |
Vehicle health reports | $0 | |
Wide-view rear camera | $0 | |
Cargo Management | ||
Cargo cover | $75 | |
Cargo mat | $40 | |
Overhead sunglass holder | $25 | |
Climate Control | ||
Rain-sensing wipers | $175 | |
Rear wiper | $175 | |
Variable intermittent wipers | $75 | |
Exterior | ||
Black exterior trim (optional) | $0 | |
Bodyside cladding | $350 | |
Deep-tinted rear windows | $275 | |
Laminated front side windows | $200 | |
Painted brake calipers (optional) | $0 | |
Panoramic sunroof | $1200 | |
Sunroof | $900 | |
Infotainment | ||
Android Auto support | $100 | |
Apple CarPlay support | $100 | |
CD player | $125 | |
DVD-Audio-compatible player | $0 | |
Media drive | $15 | |
MP3-compatible player | $50 | |
Siri Eyes Free support | $0 | |
Telematics service, such as OnStar | $200 | |
Traffic + travel information | $25 | |
Traffic information | $25 | |
Voice control for external devices | $0 | |
Instruments, Lights, and Mirrors | ||
Approach detection | $25 | |
Auto-dimming driver-side mirror | $75 | |
Auto-dimming headlights | $200 | |
Auto-dimming passenger-side mirror | $75 | |
Mirror tilt-down in reverse | $25 | |
Power-folding mirrors | $50 | |
Spotter mirror(s) | $50 | |
Steering-linked headlights | $150 | |
Seats and Interior Trim | ||
Door sill trim plates | $100 | |
Metal pedals | $75 | |
Power 4-way lumbar adjuster, driver seat | $150 | |
Power lumbar adjuster, driver seat | $100 | |
Power lumbar adjuster, passenger seat | $100 | |
Suspension, Wheels, and Tires | ||
Adaptive dampers - mechanical | $100 | |
Electronic systems calibration selector | $200 | |
Performance steering system (optional) | $0 | |
Sport suspension (upgrade) | $0 | |
Total Value of Features | $4,955 | $4,040 |
Value of Feature Adjustments | $915 | $0 |
Value of Feature Adjustments | -870 | 0 |
Model Year | 2018 | 2018 |
Model | RDX | Optima |
Body | 4dr SUV | 4dr Sedan |
Wheelbase | 105.7 in | 110.4 in |
Length | 184.4 in | 191.1 in |
Width | 73.7 in | 73.2 in |
Height | 65.0 in | 57.7 in |
Curb Weight | 3,737 lb. | 3,494 lb. |
Fuel Capacity | 16.0 gal. | 18.5 gal. |
Row 1 Headroom | 38.7 in | 39.8 in |
Row 1 Shoulder Room | 58.7 in | 58.1 in |
Row 1 Hip Room | 55.7 in | 56.0 in |
Row 1 Legroom | 42.0 in | 45.5 in |
Row 2 Headroom | 38.1 in | 37.8 in |
Row 2 Shoulder Room | 57.2 in | 56.4 in |
Row 2 Hip Room | 53.8 in | 56.0 in |
Row 2 Legroom | 38.3 in | 35.6 in |
Cargo Volume, Minimum | 26.1 ft3 | 15.9 ft3 |
Cargo Volume, Maximum | 61.3 ft3 | 15.9 ft3 |
Advance Package | ||
Feature | Value | Requested? |
Cooled or ventilated front seats | 300 | Yes |
Rain-sensing wipers | 100 | No |
Fog lights | 125 | Yes |
Obstacle detection, front | 150 | No |
Obstacle detection, rear | 250 | Yes |
Auto-dimming driver-side mirror | 75 | No |
Remote start | 150 | Yes |
Auto-dimming passenger-side mirror | 75 | No |
Navigation system | 600 | Yes |
Leather seating surfaces | 900 | Yes |
Telematics service, such as OnStar | 200 | No |
DVD-Audio-compatible player | 0 | No |
Power height adjuster, passenger seat | 100 | Yes |
Power tilt adjuster, passenger seat | 100 | Yes |
Surround sound | 250 | Yes |
Voice control for nav and audio | 100 | Yes |
HD radio | 50 | Yes |
Blind spot warning system | 200 | Yes |
Media drive | 15 | No |
Traffic + travel information | 25 | No |
Cross-traffic warning, rear | 100 | Yes |
ELS, 410W, 10 speakers (with subwoofer) | 350 | No |
Radar- or camera-based collision preparation system | 0 | No |
Lane departure warning | 200 | Yes |
Adaptive cruise control, all-speed | 700 | Yes |
Automatic braking, low-speed | 200 | Yes |
Automatic braking, high-speed or partial | 200 | Yes |
Forward collision warning | 200 | Yes |
Pedestrian detection | 50 | No |
Lane keeping assist | 400 | No |
Total Requested | 4725 | 77% |
Total Not Requested | 1440 | 23% |
Universal garage door opener | ||
Feature | Value | Requested? |
Universal garage door opener | 100 | Yes |
Compass | 0 | Yes |
Total Requested | 100 | 100% |
Total Not Requested | 0 | 0% |
Technology Package | ||
Feature | Value | Requested? |
Auto-dimming headlights | 200 | No |
Surround sound | 250 | Yes |
Lane departure warning | 200 | Yes |
Adaptive cruise control, all-speed | 700 | Yes |
Automatic braking, low-speed | 200 | Yes |
Automatic braking, high-speed or partial | 200 | Yes |
Forward collision warning | 200 | Yes |
Harman/Kardon, 630W, 10 speakers (with subwoofer) | 350 | No |
Navigation system | 600 | Yes |
Voice control for nav and audio | 100 | Yes |
Traffic information | 25 | Yes |
HD radio | 50 | Yes |
Total Requested | 2525 | 82% |
Total Not Requested | 550 | 18% |