If they don't show up, then the vehicles will go to auction.
Releasing a list of motors, Dubai Police said: "All the owners of the confiscated vehicles that have lasted more than three months without taking necessary action are requested to report to the concerned departments within a month of this notification to release them.
"The cars shall otherwise be sold in auction."
In March, Dubai Police held a slightly different auction, mainly focusing on used items, spare parts and tools.
It also included vehicles that had been impounded for street racing or whose owners refused to pay off their traffic fines.
Keep an eye on Time Out Dubai because we'll be bringing you details of the upcoming sale as soon as we know more. For more information go to dubaipolice.gov.ae.