Referred to as the greatest way to finish off the annual show, the Derby involves 10 to 12 cars continually crashing into each other until the vehicle is unable to move – in first gear or reverse – on its own.

“We’re trying to give entries plenty of time to enter,” Allan Rees said, adding that it can take six to seven weeks for the cars to be ready.

Mr Rees said roll bars need to be installed in the vehicles, with the glass and seats removed. The cars in the derby are only permitted to have five to 10 litres of fuel in them to prevent fires.

Carried out in an arena surrounded by tyres, the cars start the derby nose out, and reverse in to crash into each other. The winner is the last vehicle to move on its own in forward or reverse.

“The old Valiants and old Falcon sedans seem to last longest,” Mr Rees said.

Utes are not allowed to enter the competition and all drivers are required to wear a helmet and to stay in their vehicle until the derby is finished.

Once a vehicle is unable to move, the drivers must display a white flag.

“It gets the adrenaline pumping,” Mr Rees said, adding that for the participants it’s like being in a car accident.

Organisers of the event are encouraging more locals to enter the derby as past derbies have seen the majority of entries coming from out of town.

“It’s a local show and we like to have local entries,” Mr Rees said.