The MX-5 Miata has standard Smart City Brake Support, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Emira doesn't offer collision warning or crash mitigation brakes.
The MX-5 Miata has standard Secondary Collision Reduction, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Emira 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 MX-5 Miata’s lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The Emira doesn’t offer a lane departure warning system.
To help make backing out of a parking space safer, the MX-5 Miata’s standard Rear Cross Traffic Alert uses sensors in the rear to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The Emira doesn’t offer a rear cross-path warning system.
The MX-5 Miata has standard E911 Automatic Emergency Notification, which uses a global positioning satellite (GPS) receiver and a cellular system to send emergency personnel to the scene if any airbags deploy. The Emira doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.
Both the MX-5 Miata and the Emira have standard driver and passenger frontal airbags, front side-impact airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control and electronic stability systems to prevent skidding.