The ID.4’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Prius Prime doesn’t offer pre-crash pretensioners.
Both the ID.4 and Prius Prime have child safety locks to prevent children from opening the rear doors. The ID.4 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 Prius Prime’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 ID.4 Pro has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The Prius Prime doesn’t offer all-wheel drive.
To help make backing out of a parking space safer, the ID.4 has standard Rear Traffic Alert with automatic braking, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Parking Support Brake costs extra on the Prius Prime.
Both the ID.4 and the Prius Prime have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available around view monitors.
The Volkswagen ID.4 weighs 746 to 1416 pounds more than the Toyota Prius Prime. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.
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 Volkswagen ID.4 is safer than the Prius Prime:
|
ID.4 |
Prius Prime |
Overall Evaluation |
GOOD |
GOOD |
Structure |
GOOD |
ACCEPTABLE |
|
Driver Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
41 |
331 |
Neck Tension |
178 lbs. |
223 lbs. |
Neck Compression |
22 lbs. |
45 lbs. |
Torso |
GOOD |
ACCEPTABLE |
Shoulder Deflection |
.98 in |
1.54 in |
Shoulder Force |
178 lbs. |
335 lbs. |
Torso Max Deflection |
.83 in |
1.46 in |
Torso Deflection Rate |
4 MPH |
9 MPH |
Pelvis |
GOOD |
GOOD |
Pelvis Force |
357 lbs. |
759 lbs. |
Head Protection |
GOOD |
GOOD |
|
Passenger Injury Measures |
|
Head/Neck |
GOOD |
GOOD |
Head Injury Criterion |
243 |
246 |
Neck Compression |
112 lbs. |
134 lbs. |
Torso |
GOOD |
GOOD |
Shoulder Deflection |
.28 in |
1.42 in |
Shoulder Force |
112 lbs. |
268 lbs. |
Torso Max Deflection |
.71 in |
1.06 in |
Torso Deflection Rate |
4 MPH |
5 MPH |
Pelvis |
GOOD |
GOOD |
Pelvis Force |
446 lbs. |
692 lbs. |
Head Protection |
GOOD |
GOOD |