The A5’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Altima doesn’t offer pre-crash pretensioners.
Both the A5 and Altima have child safety locks to prevent children from opening the rear doors. The A5 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Altima’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The A5 has a standard front seat center airbag, which deploys between the driver and front passenger, protecting them from injuries caused by striking each other in serious side impacts. The Altima doesn’t offer front seat center airbags.
The A5 has standard whiplash protection, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the whiplash protection system moves the headrests forward to prevent neck and spine injuries. The Altima doesn’t offer a whiplash protection system.
With its standard Active Front Assist, the Audi A5 is better at preventing collisions with pedestrians than the Nissan Altima, according to the Insurance Institute for Highway Safety:
|
|
A5 |
Altima |
| Overall Evaluation |
GOOD |
MARGINAL |
|
|
Crossing Child - DAY |
|
| 12 MPH |
AVOIDED |
AVOIDED |
| 25 MPH |
AVOIDED |
-11 MPH |
|
|
Crossing Adult - NIGHT |
|
| 12 MPH Brights |
AVOIDED |
-5 MPH |
| 12 MPH Low beams |
AVOIDED |
-1 MPH |
| 25 MPH Brights |
AVOIDED |
-7 MPH |
| 25 MPH Low beams |
AVOIDED |
-5 MPH |
|
|
Parallel Adult - NIGHT |
|
| 25 MPH Brights |
AVOIDED |
-11 MPH |
| 25 MPH Low beams |
AVOIDED |
-5 MPH |
| 37 MPH Brights |
AVOIDED |
-9 MPH |
| Warning Issued-Brights |
2.2 sec |
1.3 sec |
| 37 MPH Low beams |
AVOIDED |
No Slowing |
| Warning Issued-Low beams |
1.7 sec |
No Warning |
In a Vehicle-to-Vehicle Frontal Crash Prevention 2.0 test conducted by the Insurance Institute for Highway Safety (IIHS), the Audi A5 achieved a “Good” rating - the highest possible - in forward collision warning and automatic braking systems, outperforming the Nissan Altima which scored “Poor” - the lowest rating - in these critical safety features.
The A5 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Altima doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A5. But it costs extra on the Altima.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The A5 has Car-to-X Services, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The Altima doesn’t offer a system that can receive automated systems from infrastructure.
Both the A5 and Altima have rear cross-traffic warning, but the A5 has Automatic Brake Activation (automatically applies the brakes) to better prevent a collision when backing near traffic. The Altima’s Rear Cross Traffic Alert doesn’t automatically brake.
Both the A5 and the Altima have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and driver alert monitors.
The Audi A5 weighs 650 to 809 pounds more than the Nissan Altima. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.
The Insurance Institute for Highway Safety does 40 MPH moderate front offset crash tests on new cars. In this updated test, results indicate that the A5 is much safer than the Altima:
|
|
A5 |
Altima |
| Overall Evaluation |
GOOD |
MARGINAL |
| Structure |
GOOD |
GOOD |
|
|
Driver Injury Measures |
|
| Head/Neck Rating |
GOOD |
GOOD |
| Chest Rating |
GOOD |
GOOD |
| Thigh/hip Rating |
GOOD |
GOOD |
| Leg/foot Rating |
GOOD |
GOOD |
| Leg Forces L/R |
360/112 pounds |
517/517 pounds |
| Restraints |
GOOD |
GOOD |
|
|
Rear Passenger Injury Measures |
|
| Head/Neck Rating |
GOOD |
ACCEPTABLE |
| Chest Rating |
GOOD |
MARGINAL |
| Thigh Rating |
GOOD |
GOOD |
| Restraints |
ACCEPTABLE |
POOR |
Side impacts caused 23% of all road fatalities in 2018, down from 29% in 2003, when the Insurance Institute for Highway Safety introduced its side barrier test. In order to continue improving vehicle safety, the IIHS has started using a more severe side impact test: 37 MPH (up from 31 MPH), with a 4180-pound barrier (up from 3300 pounds). The results of this newly developed test demonstrates that the Audi A5 is much safer than the Altima:
|
|
A5 |
Altima |
| Overall Evaluation |
GOOD |
POOR |
| Structure |
GOOD |
POOR |
|
|
Driver Injury Measures |
|
| Head/Neck |
GOOD |
MARGINAL |
| Head Injury Criterion |
278 |
562 |
| Head Peak Forces |
no contact |
109 G’s |
| Neck Tension |
357 lbs. |
625 lbs. |
| Neck Compression |
-201 lbs. |
22 lbs. |
| Torso |
ACCEPTABLE |
POOR |
| Shoulder Deflection |
1.42 in |
2.09 in |
| Shoulder Force |
335 lbs. |
402 lbs. |
| Torso Max Deflection |
1.34 in |
2.2 in |
| Pelvis |
GOOD |
POOR |
| Pelvis Force |
870 lbs. |
1339 lbs. |
| Head Protection |
GOOD |
MARGINAL |
|
|
Passenger Injury Measures |
|
| Neck Tension |
112 lbs. |
201 lbs. |
| Neck Compression |
-22 lbs. |
22 lbs. |
| Shoulder Deflection |
.75 in |
1.06 in |
| Shoulder Force |
268 lbs. |
290 lbs. |
| Torso Deflection Rate |
7 MPH |
7 MPH |
| Pelvis |
GOOD |
GOOD |
| Pelvis Force |
736 lbs. |
892 lbs. |
| Head Protection |
GOOD |
GOOD |
The Audi A5 has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2025 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned a “Good” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The Altima is not even a standard “Top Safety Pick” for 2025.

