Watch mind-boggling moment car travels along a busy road – but can you tell which way it’s moving?
THIS mind-bending optical illusion asks whether you see the moving car driving forward or backwards along a packed motorway.
The illusion clip will surely put your eyes to the test and maybe even leave you a little dizzy as you try to work it out.
The video shows a red car surrounded by heavy traffic apparently moving past it.
It stays in the centre of the frame as yellow, black and grey cars swarm around.
The question is whether you can see the red car itself moving forward or backward.
Some people think the red car is moving forward with traffic, while others think it is reversing against the other cars.
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The gif, shared online, has been cleverly made in a way that it can be interpreted differently.
And it depends on where your focus is on the moving image.
One Reddit user said they could see it moving forwards at the start.
"Once I noticed the white lines, I can't see it going backwards anymore.
"The white lines make it pretty clear that it is going forwards slowly."
Another wrote: "I've just found that when I concentrate (fix my gaze) on the front of the red car than I see it moving forward.
"However, if concentrate on other cars, I see it moving backward."
"I can see it both ways," said someone else diplomatically.
A third user said: "I could swap it between the two, not really sure how."
According to most of the reactions online, it seems the car is indeed moving forwards and the trick is to focus on the road or white lines in front of it.
Working your way through the brainteaser could sharpen your noggin just as you need it most.
Psychologists at The University of Glasgow found that staring at a brainteaser can actually drastically improve eyesight as frequent puzzle players can see small print with greater ease.
According to ZenBuisness: "These visual puzzles can give you a good mental workout that can, in turn, help you think more efficiently and solve problems more easily."
Optical illusions are widely regarded to help improve our attention spans, concentration, and overall cognitive function.
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And brainteasers where you have to find an image within an image aid your brain's ability to interpret ambiguity.
Here are some more of our best.
