Dramatic video footage shows the moment two cars collide on a motorway but viewers are divided about which driver was at fault.
One of the vehicle's dashcams shows an orange Fiat 500 indicate and then move into the left-hand lane on the Australian motorway.
The dashcam driver appears to be in the Fiat's blind spot and does not have time to brake sufficiently, although they do sound their horn.
The Fiat driver puts her left indicator on as she begins the manoeuvre but fails to spot the dashcam vehicle and spins off to the side of the road after crashing into the front of the other vehicle.
The Fiat comes to a stop facing the wrong way at the side of the motorway.
Facebook page Dash Cam Owners Australia posted the video, sparking an intense debate that has attracted thousands of comments.
“Before hitting the horn try hitting the brakes,” wrote one person siding with the Fiat driver, reports The Sun.
“You obviously seen she was intending to merge. Be the better person and avoid the extra hassle.”
Another on team Fiat wrote: “What on earth did I just watch…..if you don’t see that happening as a driver… probably a good idea to hand your license in.”
It was also noted that the dashcam driver had accelerated from 72kph (44mph) to 76kph (47mph) in the moments leading up to the collision.
“You sped up into their blind spot then didn't make any effort to avoid,” one user commented.
“You could have just as easily backed off those few kms/hr.”
Others saw the incident differently, with one writing: “Fiat at fault and should have their licence taken away. They are a dangerous driver!”
“The Fiat driver shouldn't have kept coming once the horn was sounded,” wrote another.
“They put indicator on and think they're entitled to just move over. Indicate, look then change lanes if safe to do so,” another wrote.
“Proof that an indicator doesn't give you a special bubble of protection to do whatever TF you want,” a third added.
One commenter suggested there would be fewer crashes on the roads if manufacturers connected the horn to the brakes.
“I reckon Tesla and all the other manufacturers developing autonomous driving tech could help reduce crashes if they just made the horn apply pressure to the brake pedal ... time to step up Elon,” they wrote.
