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 Elantra N are reminded to check the back seat if they opened the rear door before starting out. The S4 doesn’t offer a back seat reminder.
Over 200 people are killed each year when backed over by motor vehicles. The Elantra N Auto has standard Reverse Parking Collision Avoidance Assist that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The S4 doesn’t offer backup collision prevention brakes.
The Elantra N has a standard blind spot warning system which uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the S4’s blind spot costs extra.
To help make backing out of a parking space safer, the Elantra N has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Rear cross-path warning costs extra on the S4.
The Elantra N’s 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 S4 doesn’t offer a driver alert monitor.
Both the Elantra N and the S4 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and rearview cameras.
For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, its standard vehicle-to-vehicle front crash prevention system, its standard vehicle-to-pedestrian front crash prevention system, and its available headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the Elantra N the rating of “Top Safety Pick” for 2022, a rating granted to only 141 vehicles tested by the IIHS. The S4 has not been tested, yet.