Top Safety Pick + Top Safety Pick criteria

2015 Infiniti Q50

midsize luxury car / 4-door sedan

Award applies only to vehicles with optional front crash prevention

2015 Infiniti Q50 4-door sedan

Crashworthiness

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

Crash avoidance & mitigation

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

Other available safety features

  • Standard daytime running lights
  • Optional blind spot detection
  • Optional lane departure warning
  • Optional lane departure prevention

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.

Overall evaluation
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

Measures of occupant compartment intrusion on driver side

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

Driver injury measures

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

How the driver-side small overlap front test is conducted

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 as part of frontal crash test verification.

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

Measures of occupant compartment intrusion on driver side

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

Driver injury measures

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

How the moderate overlap front test is conducted

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 as part of side crash test verification.

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

Measures of occupant compartment intrusion on driver side

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.

Driver injury measures

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

Passenger injury measures

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

How the side crash test is conducted

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

How the roof strength test is conducted

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

How the head restraint & seat test is conducted
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
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:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination High-beam assist credit

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
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
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:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam 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
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
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:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam illumination High-beam assist credit

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
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
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:
car-simpler car-simpler car-simpler car-simpler car-simpler 0 ft 100 ft 200 ft 300 ft 400 ft 500 ft 600 ft Low beams Optimal low-beam illumination High beams Optimal high-beam 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
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

How headlights are evaluated

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
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.

How front crash prevention is evaluated