For enhanced safety, the front and rear seat shoulder belts of the Toyota Prius Prime have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The BMW 330e doesn’t offer pretensioners for its rear seat belts.
For enhanced safety, the front seat shoulder belts of the Toyota Prius Prime are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW 330e doesn’t offer height-adjustable seat belts.
Over 200 people are killed each year when backed over by motor vehicles. The Prius Prime offers an optional Parking Support Brake that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The 330e doesn’t offer backup collision prevention brakes.
The Prius Prime XSE Premium offers an optional Panoramic View Monitor to allow the driver to see objects all around the vehicle on a screen. The 330e only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
The Prius Prime has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the 330e’s blind spot costs extra.
To help make backing out of a parking space safer, the Prius Prime has standard Rear Cross Traffic Alert to warn the driver of approaching traffic and automatically engage the brakes to help avoid a collision. BMW charges extra for Cross Traffic Warning on the 330e and the 330e’s Cross Traffic Warning does not include automatic braking.
Both the Prius Prime and the 330e have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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, rearview cameras and driver alert monitors.
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, daytime pedestrian crash prevention, and nighttime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the Prius Prime the rating of “Top Safety Pick Plus” for 2023, a rating granted to only 36 vehicles tested by the IIHS. The 330e has not been fully tested, yet.