2020 BMW Z4 roadster scored well all-round but its protection of vulnerable road users was especially impressive, thanks to an active bonnet that lifts when a pedestrian has been hit. Thanks for watching Subscribe: https://goo.gl/5i54Vg Shop: https://bit.ly/2TkD8vaInstagram: http://www.instagram.com/youcar_offic…Facebook: http://www.facebook.com/youcarpress/ #youcar #bmw #bmwz4 #2020bmwz4 #crash…