Top Safety Pick +

2015 Infiniti Q50

midsize luxury car / 4-door sedan

Award applies only to vehicles with optional front crash prevention

Crashworthiness

Rating overview
Evaluation criteria	Rating
Small overlap front: driver-side
Moderate overlap front: original test
Side: original test
Roof strength
Head restraints & seats

Crash avoidance & mitigation

Evaluation criteria	Rating
Headlights (varies by trim/option)
Front crash prevention: vehicle-to-vehicle
Optional system	Superior

Other available safety features

Optional blind spot detection
Optional lane departure warning
Optional lane departure prevention
Optional rear automatic braking

Key

G
Good
A
Acceptable
M
Marginal
P
Poor

Superior
Advanced
Basic

Some ratings use a scale of Poor to Good. Others range from Basic to Superior.

Small overlap front: driver-side

Rating applies to 2014-15 models

Tested vehicle: 2014 Infiniti Q50 3.7 Premium 4-door

The Infiniti G was redesigned for the 2014 model year and renamed the Q50.

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 maintained reasonably well.

The frontal and side curtain airbags worked well together to keep the head from coming close to any stiff structure or outside objects that could cause injury.

Footrest, parking brake, and instrument panel intrusion contributed to a significant risk of injury to the left lower leg.

Technical measurements for this test

Evaluation criteria	Measurement
Test ID	CEN1338
Lower occupant compartment
Lower hinge pillar max (cm)	12
Footrest (cm)	17
Left toepan (cm)	8
Brake pedal (cm)	7
Parking brake (cm)	19
Rocker panel lateral average (cm)	6
Upper occupant compartment
Steering column	0
Upper hinge pillar max (cm)	3
Upper dash (cm)	6
Lower instrument panel (cm)	7

Evaluation criteria	Measurement
Test ID	CEN1338
Head
HIC-15	204
Peak gs at hard contact	no contact
Neck
Tension (kN)	0.9
Extension bending moment (Nm)	5
Maximum Nij	0.21
Chest maximum compression (mm)	28
Femur (kN)
Left	1.5
Right	0.1
Knee displacement (mm)
Left	2
Right	0
Knee-thigh-hip injury risk (%)
Left	0
Right	0
Maximum tibia index
Left	1.06
Right	0.26
Tibia axial force (kN)
Left	3.5
Right	0.9
Foot acceleration (g)
Left	86
Right	47

About the small overlap front test

Moderate overlap front: original test

Rating applies to 2014-15 models

Tested vehicle: 2014 Infiniti Q50S Hybrid 4-door 4wd

The Infiniti G was redesigned for the 2014 model year and renamed the Q50. Moderate overlap frontal ratings are assigned by the Institute based on a test conducted by Nissan.

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

Technical measurements for this test

Evaluation criteria	Measurement
Test ID	VTF1312
Footwell intrusion
Footrest (cm)	6
Left (cm)	5
Center (cm)	8
Right (cm)	7
Brake pedal (cm)	1
Instrument panel rearward movement
Left (cm)	1
Right (cm)	3
Steering column movement
Upward (cm)	3
Rearward (cm)	0
A-pillar rearward movement (cm)	0

Evaluation criteria	Measurement
Test ID	VTF1312
Head
HIC-15	302
Peak gs at hard contact	no contact
Neck
Tension (kN)	1.4
Extension bending moment (Nm)	10
Maximum Nij	0.28
Chest maximum compression (mm)	36
Legs
Femur force - left (kN)	0.6
Femur force - right (kN)	0.2
Knee displacement - left (mm)	1
Knee displacement - right (mm)	2
Maximum tibia index - left	0.55
Maximum tibia index - right	0.32
Tibia axial force - left (kN)	2.0
Tibia axial force - right (kN)	2.0
Foot acceleration (g)
Left	95
Right	72

About the original moderate overlap front test

Side: original test

Rating applies to 2014-24 models

Tested vehicle: 2014 Infiniti Q50 3.7 Premium 4-door 4wd with standard front and rear head curtain airbags and standard front seat-mounted torso airbags

The Infiniti G was redesigned for the 2014 model year and renamed the Q50. Side ratings are assigned by the Institute based on a test conducted by Nissan.

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

Technical measurements for this test

Test ID	VTS1307
B-pillar to longitudinal centerline of driver's seat (cm)	-10.0
Negative numbers indicate the amount by which the crush stopped short of the seat centerline.

Evaluation criteria	Measurement
Test ID	VTS1307
Head HIC-15	348
Neck
Tension (kN)	1.8
Compression (kN)	0.3
Shoulder
Lateral deflection (mm)	23
Lateral force (kN)	1.5
Torso
Maximum deflection (mm)	30
Average deflection (mm)	26
Maximum deflection rate (m/s)	2.90
Maximum viscous criterion (m/s)	0.28
Pelvis
Iliac force (kN)	1.6
Acetabulum force (kN)	1.8
Combined force (kN)	3.2
Left femur
L-M force (kN)	0.9
L-M moment (Nm)	139
A-P moment (Nm)	49

Evaluation criteria	Measurement
Test ID	VTS1307
Head HIC-15	137
Neck
Tension (kN)	0.1
Compression (kN)	0.3
Shoulder
Lateral deflection (mm)	31
Lateral force (kN)	1.6
Torso
Maximum deflection (mm)	29
Average deflection (mm)	22
Maximum deflection rate (m/s)	2.59
Maximum viscous criterion (m/s)	0.33
Pelvis
Iliac force (kN)	0.4
Acetabulum force (kN)	0.5
Combined force (kN)	0.8
Left femur
L-M force (kN)	1.1
L-M moment (Nm)	59
A-P moment (Nm)	-172

About the original side crash test

Roof strength

Rating applies to 2014-23 models

Tested vehicle: 2014 Infiniti Q50 3.7 Premium 4-door

Overall evaluation
Curb weight	3,652 lbs
Peak force	19,309 lbs
Strength-to-weight ratio	5.29

About the roof strength test

Head restraints & seats

Seat type: Power leather seat

Overall evaluation
Dynamic rating
Seat/head restraint geometry

Technical measurements for this test

Seat type	Power leather seat
Geometry
Backset (mm)	15
Distance below top of head (mm)	34
Seat design parameters
Pass/fail	Pass
Max T1 acceleration (g)	14.7
Head contact time (ms)	56
Force rating	1
Neck forces
Max neck shear force (N)	0
Max neck tension (N)	515

About the head restraint & seat test
Currently, IIHS tests apply only to front seats.

Headlights

Ratings are given for 4 different headlight variations available on this vehicle.

Trim level(s)

Premium trim equipped with Technology package; built after October 2015
S trim equipped with Technology package; built after October 2015

Evaluation criteria	Rating
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating
Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was fair on the left side of the road and inadequate on the right side. On curves, visibility was good on both right curves, fair on the sharp left curve and inadequate on the gradual left curve.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was good on the right side of the road and inadequate on the left side. On curves, visibility was good on the gradual right curve, fair on the sharp right and gradual left curves, and inadequate on the sharp left curve.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and all 4 curves.

Technical measurements for this test

Evaluation criteria	Measurement
Trim level(s)	Premium trim equipped with Technology package S trim equipped with Technology package
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating Applies to 2015-21 models built after October 2015

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	77.0 m	None
Straightaway left edge	46.8 m	None
250m radius right curve, right edge	66.4 m	None
250m radius left curve, left edge	46.4 m	None
150m radius right curve, right edge	59.2 m	None
150m radius left curve, left edge	46.1 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	145.0 m
Straightaway left edge	117.0 m
250m radius right curve, right edge	77.9 m
250m radius left curve, left edge	65.8 m
150m radius right curve, right edge	61.2 m
150m radius left curve, left edge	52.6 m

Trim level(s)

Base trim; built after October 2015
Premium trim; built after October 2015
S trim; built after October 2015

Evaluation criteria	Rating
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	No
High-beam assist?	No
Overall rating
Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was fair on both sides of the road. On curves, visibility was fair on both right curves and inadequate on both left curves.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was fair on the gradual right curve and inadequate on the sharp right and both left curves.

Technical measurements for this test

Evaluation criteria	Measurement
Trim level(s)	Base trim Premium trim S trim
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	No
High-beam assist?	No
Overall rating Applies to 2015-24 models built after October 2015

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	84.6 m	None
Straightaway left edge	48.2 m	None
250m radius right curve, right edge	61.2 m	None
250m radius left curve, right edge	44.6 m	None
150m radius right curve, right edge	46.7 m	None
150m radius left curve, left edge	41.5 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	140.1 m
Straightaway left edge	103.3 m
250m radius right curve, right edge	72.6 m
250m radius left curve, left edge	61.7 m
150m radius right curve, right edge	53.3 m
150m radius left curve, left edge	47.9 m

Trim level(s)

Premium trim equipped with Technology package; built before November 2015
S trim equipped with Technology package; built before November 2015

Evaluation criteria	Rating
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating
Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was fair on both sides of the road. On curves, visibility was good on both right curves, fair on the sharp left curve and inadequate on the gradual left curve.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was fair on the right side of the road and inadequate on the left side. On curves, visibility was good on the gradual right curve, fair on the sharp right and gradual left curves, and inadequate on the sharp left curve.

High-beam assist compensates for some limitations of this vehicle's low beams on the straightaway and on both left curves.

Technical measurements for this test

Evaluation criteria	Measurement
Trim level(s)	Premium trim equipped with Technology package S trim equipped with Technology package
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	Yes
High-beam assist?	Yes
Overall rating Applies to 2015 models built before November 2015

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	84.4 m	None
Straightaway left edge	50.0 m	None
250m radius right curve, right edge	72.0 m	None
250m radius left curve, left edge	47.2 m	None
150m radius right curve, right edge	61.1 m	None
150m radius left curve, left edge	48.3 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	142.3 m
Straightaway left edge	112.2 m
250m radius right curve, right edge	81.2 m
250m radius left curve, left edge	65.2 m
150m radius right curve, right edge	64.0 m
150m radius left curve, left edge	50.6 m

Trim level(s)

Base trim; built before November 2015
Premium trim; built before November 2015
S trim; built before November 2015

Evaluation criteria	Rating
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	No
High-beam assist?	No
Overall rating
Distance at which headlights provide at least 5 lux illumination:

Low beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was fair on the sharp right curve and inadequate on the gradual right and both left curves.

The low beams never exceeded glare limits.

High beams
On the straightaway, visibility was inadequate on both sides of the road. On curves, visibility was fair on the gradual right curve and inadequate on the sharp right and both left curves.

Technical measurements for this test

Evaluation criteria	Measurement
Trim level(s)	Base trim Premium trim S trim
Low-beam headlight type	LED projector
High-beam headlight type	LED reflector
Curve-adaptive?	No
High-beam assist?	No
Overall rating Applies to 2015 models built before November 2015

LOW BEAMS	Average minimum useful illumination distance (5 lux)	Amount glare exceeded threshold
Straightaway right edge	55.1 m	None
Straightaway left edge	37.2 m	None
250m radius right curve, right edge	52.3 m	None
250m radius left curve, left edge	38.8 m	None
150m radius right curve, right edge	45.1 m	None
150m radius left curve, right edge	35.5 m	None

HIGH BEAMS	Average minimum useful illumination distance (5 lux)
Straightaway right edge	125.4 m
Straightaway left edge	106.7 m
250m radius right curve, right edge	67.5 m
250m radius left curve, left edge	61.2 m
150m radius right curve, right edge	50.3 m
150m radius left curve, left edge	46.1 m

About the headlight evaluation

Front crash prevention: vehicle-to-vehicle

System details

Optional Forward Emergency Braking

Package name

Optional Technology Package or Deluxe Technology Package

Overall evaluation

Applies to 2014-16 models

Superior

with optional equipment

This system meets the requirements for forward collision warning.
In the 12 mph test, this vehicle avoided a collision.
In the 25 mph test, impact speed was reduced by 24 mph.

About the original front crash prevention test