In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the bZ4X are reminded to check the back seat if they opened the rear door before starting out. The MX-30 doesn’t offer a back seat reminder.
The bZ4X has standard post collision braking, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The MX-30 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.
The bZ4X has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The MX-30 doesn’t offer all-wheel drive.
When descending a steep, off-road slope, the bZ4X AWD’s standard Downhill Assist Control allows you to creep down safely. The MX-30 doesn’t offer Downhill Assist Control.
Both the bZ4X and the MX-30 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, front wheel drive, 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, driver alert monitors and available around view monitors.
The Toyota bZ4X weighs 611 to 809 pounds more than the Mazda MX-30. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.