For enhanced safety, the front and rear seat shoulder belts of the Mazda 3 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 BMW 2 Series Gran Coupe doesn’t offer pretensioners for its rear seat belts.
For enhanced safety, the front seat shoulder belts of the Mazda 3 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW 2 Series Gran Coupe doesn’t offer height-adjustable seat belts.
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 Mazda 3 are reminded to check the back seat if they opened the rear door before starting out. The 2 Series Gran Coupe doesn’t offer a back seat reminder.
The Mazda 3 has standard Whiplash Reducing Headrests, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Reducing Headrests system moves the headrests forward to prevent neck and spine injuries. The 2 Series Gran Coupe doesn’t offer a whiplash protection system.
The Mazda 3 Turbo Premium Plus has a standard 360-Degree Monitor to allow the driver to see objects all around the vehicle on a screen. The 2 Series Gran Coupe only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.
Both the Mazda 3 and 2 Series Gran Coupe have rear cross-traffic warning, but the Mazda 3Turbo Premium Plus has Rear Cross Traffic Braking (automatically applies the brakes) to better prevent a collision when backing near traffic. The 2 Series Gran Coupe’s Cross Traffic Warning doesn’t automatically brake.
Both the Mazda 3 and the 2 Series Gran Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front wheel drive, 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 all wheel drive.
For its performance in IIHS driver-side and passenger-side small overlap frontal, moderate overlap frontal, updated side impact, headlight, and daytime pedestrian crash prevention testing, the Insurance Institute for Highway Safety grants the Mazda 3 the rating of “Top Safety Pick” for 2023, a rating granted to only 54 vehicles tested by the IIHS. The 2 Series Gran Coupe last would have qualified as a “Top Safety Pick” in 2022.