For enhanced safety, the front and rear seat shoulder belts of the Mercedes EQS 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 Ford Mustang Mach-E doesn’t offer pretensioners for its rear seat belts.
The EQS’ pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Mustang Mach-E doesn’t offer pre-crash pretensioners.
The Mercedes EQS has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Mustang Mach-E doesn’t offer a front passenger side knee airbag.
The rear seatbelts optional on the EQS inflate when a collision is detected, helping to spread crash forces over a much larger area of the body and limiting head and neck movement. This can help prevent spinal and internal injuries. The Mustang Mach-E doesn’t offer inflatable seatbelts.
The EQS’ standard pretensioning seatbelts also sense rear collisions and remove slack from the seatbelts to help protect the occupants from whiplash and other injuries. The Mustang Mach-E doesn’t offer a whiplash protection system.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The EQS has Car-to-X Communication, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The Mustang Mach-E doesn’t offer a system that can receive automated systems from infrastructure or other vehicles.
Both the EQS and the Mustang Mach-E have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, 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, blind spot warning systems, around view monitors, rear cross-path warning and driver alert monitors.
The Mercedes EQS weighs 538 to 1470 pounds more than the Ford Mustang Mach-E. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.