A shocked Perth woman has captured footage of a driver travelling down a road in Safety Bay with a large shark strapped to the car's bullbar.

The woman said she "had to look twice" when she noticed the two metre dead shark, suspected to be a tiger shark, on the front of a white four-wheel-drive which was towing a boat.

Since being posted to a Perth fishing Facebook group on Monday, the video of the bizarre trip had been viewed nearly 8,000 times.

Tiger sharks with an interdorsal fin of 70 centimetres or more are not allowed to be fished recreationally in the South West bioregion of Western Australia.