Both the Grecale and Cayenne Coupe have child safety locks to prevent children from opening the rear doors. The Grecale 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 Cayenne Coupe’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.
Over 200 people are killed each year when backed over by motor vehicles. The Grecale has standard Active Park Braking that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The Cayenne Coupe doesn’t offer backup collision prevention brakes.
To help make backing out of a parking space safer, the Grecale’s optional Rear Cross Path uses sensors in the rear to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The Cayenne Coupe doesn’t offer a rear cross-path warning system.
The Grecale’s optional driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The Cayenne Coupe doesn’t offer a driver alert monitor.
Both the Grecale and the Cayenne Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.