The MINI Cooper Hardtop 4 Door 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 Prius doesn’t offer a front passenger side knee airbag.
The Cooper Hardtop 4 Door 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 Prius 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.
Compared to metal, the Cooper Hardtop 4 Door’s plastic fuel tank can withstand harder, more intrusive impacts without leaking; this decreases the possibility of fire. The Toyota Prius has a metal gas tank.
Both the Cooper Hardtop 4 Door and the Prius have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, 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, rearview cameras, driver alert monitors and available front parking sensors.

