Small overlap front: driver-side
Rating applies to 2011-15 models
Tested vehicle: 2012 Kia Optima LX 4-door
The Kia Optima was redesigned for the 2011 model year.
| Evaluation criteria | Rating |
|---|---|
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Hip/thigh | |
| Lower leg/foot | |
| Driver restraints and dummy kinematics | |
Action shot taken during the small overlap frontal crash test.
The dummy's position in relation to the door frame, steering wheel, and instrument panel after the crash test indicates that the driver's survival space was not maintained well.
The frontal and side curtain airbags worked reasonably well together to protect the head from injury in the crash test. Still, the curtain airbag should extend farther forward toward the A-pillar to protect the head from contact with forward side structure and outside objects if crash circumstances were to differ slightly.
Despite considerable intrusion into the driver footwell area, risk of injuries to the dummy's legs and feet was low.
Measures of occupant compartment intrusion on driver side
| Evaluation criteria | Measurement |
|---|---|
| Test ID | CEN1225 |
| Lower occupant compartment | |
| Lower hinge pillar max (cm) | 22 |
| Footrest (cm) | 12 |
| Left toepan (cm) | 4 |
| Brake pedal (cm) | 3 |
| Parking brake (cm) | 21 |
| Rocker panel lateral average (cm) | 6 |
| Upper occupant compartment | |
| Steering column | 4 |
| Upper hinge pillar max (cm) | 10 |
| Upper dash (cm) | 13 |
| Lower instrument panel (cm) | 18 |
Driver injury measures
| Evaluation criteria | Measurement |
|---|---|
| Test ID | CEN1225 |
| Head | |
| HIC-15 | 53 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 0.9 |
| Extension bending moment (Nm) | 8 |
| Maximum Nij | 0.19 |
| Chest maximum compression (mm) | 23 |
| Femur (kN) | |
| Left | 0.9 |
| Right | 0.1 |
| Knee displacement (mm) | |
| Left | 4 |
| Right | 1 |
| Knee-thigh-hip injury risk (%) | |
| Left | 0 |
| Right | 0 |
| Maximum tibia index | |
| Left | 0.74 |
| Right | 0.55 |
| Tibia axial force (kN) | |
| Left | 1.1 |
| Right | 0.3 |
| Foot acceleration (g) | |
| Left | 80 |
| Right | 42 |
Moderate overlap front: original test
Rating applies to 2011-15 models
Tested vehicle: 2011 Kia Optima LX 4-door
The Kia Optima was redesigned for the 2011 model year. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by Hyundai/Kia.
| Evaluation criteria | Rating |
|---|---|
| Overall evaluation | |
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Chest | |
| Leg/foot, left | |
| Leg/foot, right | |
| Driver restraints and dummy kinematics | |
Measures of occupant compartment intrusion on driver side
| Evaluation criteria | Measurement |
|---|---|
| Test ID | VTF1012 |
| Footwell intrusion | |
| Footrest (cm) | 9 |
| Left (cm) | 12 |
| Center (cm) | 12 |
| Right (cm) | 6 |
| Brake pedal (cm) | 12 |
| Instrument panel rearward movement | |
| Left (cm) | 3 |
| Right (cm) | 2 |
| Steering column movement | |
| Upward (cm) | 0 |
| Rearward (cm) | -4 |
| A-pillar rearward movement (cm) | 3 |
Driver injury measures
| Evaluation criteria | Measurement |
|---|---|
| Test ID | VTF1012 |
| Head | |
| HIC-15 | 144 |
| Peak gs at hard contact | no contact |
| Neck | |
| Tension (kN) | 1.2 |
| Extension bending moment (Nm) | 16 |
| Maximum Nij | 0.26 |
| Chest maximum compression (mm) | 36 |
| Legs | |
| Femur force - left (kN) | 1.9 |
| Femur force - right (kN) | 2.3 |
| Knee displacement - left (mm) | 1 |
| Knee displacement - right (mm) | 4 |
| Maximum tibia index - left | 0.32 |
| Maximum tibia index - right | 0.31 |
| Tibia axial force - left (kN) | 2.9 |
| Tibia axial force - right (kN) | 1.4 |
| Foot acceleration (g) | |
| Left | 42 |
| Right | 76 |
Side: original test
Rating applies to 2011-15 models
Tested vehicle: 2011 Kia Optima EX 4-door with standard front and rear head curtain airbags and standard front seat-mounted torso airbags
The Kia Optima was redesigned for the 2011 model year.
| Evaluation criteria | Rating |
|---|---|
| Overall evaluation | |
| Structure and safety cage | |
| Driver injury measures | |
| Head/neck | |
| Torso | |
| Pelvis/leg | |
| Driver head protection | |
| Rear passenger injury measures | |
| Head/neck | |
| Torso | |
| Pelvis/leg | |
| Rear passenger head protection | |
View of the vehicle and barrier just after the crash test.
View of the vehicle after the crash with doors removed, showing the side airbags and damage to the occupant compartment.
Smeared greasepaint shows where the driver dummy's head was protected from being hit by hard structures by the side curtain airbag.
Smeared greasepaint shows where the rear passenger dummy’s head was protected by the side airbag.
Measures of occupant compartment intrusion on driver side
| Test ID | CES1017 |
|---|---|
| B-pillar to longitudinal centerline of driver's seat (cm) | -11.5 |
| Negative numbers indicate the amount by which the crush stopped short of the seat centerline. | |
Driver injury measures
| Evaluation criteria | Measurement |
|---|---|
| Test ID | CES1017 |
| Head HIC-15 | 287 |
| Neck | |
| Tension (kN) | 1.3 |
| Compression (kN) | 0.6 |
| Shoulder | |
| Lateral deflection (mm) | 33 |
| Lateral force (kN) | 2.0 |
| Torso | |
| Maximum deflection (mm) | 36 |
| Average deflection (mm) | 32 |
| Maximum deflection rate (m/s) | 6.07 |
| Maximum viscous criterion (m/s) | 0.51 |
| Pelvis | |
| Iliac force (kN) | 2.1 |
| Acetabulum force (kN) | 0.8 |
| Combined force (kN) | 2.6 |
| Left femur | |
| L-M force (kN) | 0.7 |
| L-M moment (Nm) | 199 |
| A-P moment (Nm) | 53 |
Passenger injury measures
| Evaluation criteria | Measurement |
|---|---|
| Test ID | CES1017 |
| Head HIC-15 | 181 |
| Neck | |
| Tension (kN) | 0.2 |
| Compression (kN) | 0.5 |
| Shoulder | |
| Lateral deflection (mm) | 20 |
| Lateral force (kN) | 1.1 |
| Torso | |
| Maximum deflection (mm) | 28 |
| Average deflection (mm) | 23 |
| Maximum deflection rate (m/s) | 3.13 |
| Maximum viscous criterion (m/s) | 0.43 |
| Pelvis | |
| Iliac force (kN) | 0.2 |
| Acetabulum force (kN) | 1.0 |
| Combined force (kN) | 1.1 |
| Left femur | |
| L-M force (kN) | 0.5 |
| L-M moment (Nm) | 148 |
| A-P moment (Nm) | -62 |
Roof strength
Rating applies to 2011-15 models
Tested vehicle: 2011 Kia Optima LX 4-door
| Overall evaluation | |
|---|---|
| Curb weight | 3,264 lbs |
| Peak force | 16,720 lbs |
| Strength-to-weight ratio | 5.12 |
Head restraints & seats
Seat type: Manual Cloth seat (AHR)
| Overall evaluation | |
|---|---|
| Dynamic rating | |
| Seat/head restraint geometry |
| Seat type | Manual Cloth seat (AHR) |
|---|---|
| Geometry | |
| Backset (mm) | 28 |
| Distance below top of head (mm) | 20 |
| Seat design parameters | |
| Pass/fail | Pass |
| Max T1 acceleration (g) | 10.7 |
| Head contact time (ms) | 54 |
| Force rating | 1 |
| Neck forces | |
| Max neck shear force (N) | 31 |
| Max neck tension (N) | 323 |
About the head restraint & seat test
Currently, IIHS tests apply only to front seats.