Over 200 people are killed each year when backed over by motor vehicles. The Prius Prime Limited has standard Parking Support Brake that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The S90 doesn’t offer backup collision prevention brakes.
Both the Prius Prime and the S90 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver 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, rearview cameras, driver alert monitors, available blind spot warning systems, rear parking sensors and rear cross-path warning.

