The BMW 2 Series 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 GR 86 doesn’t offer a front passenger side knee airbag.
The 2 Series has a standard PostCrash iBrake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The GR 86 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 M240i has all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The GR 86 doesn’t offer all-wheel drive.
The 2 Series offers an optional Surround View to allow the driver to see objects all around the vehicle on a screen. The GR 86 only offers a rear monitor.
To help make backing out of a parking space safer, the 2 Series 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. Only the GR 86 Premium has a rear cross-path warning system.
Both the 2 Series and the GR 86 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.
The BMW 2 Series weighs 651 to 1060 pounds more than the Toyota GR 86. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts. Crosswinds also affect lighter cars more.