Police have reunited more than 100 holidaymakers with their vehicles after an airport parking company shut down and kept their keys.
Most cars have been returned to their owners but about 30 have still not been found, police said.
Passengers complained after they left their vehicles with Gatwick First Parking, which were not returned to them after arriving back in the UK.
The company, which has no relationship with Gatwick Airport, appears to have since ceased trading, according to police.
Officers managed to trace around 120 cars at sites across Surrey and Sussex. They identified the company's office in Surrey, and found car keys.
But because it is a civil matter, Sussex Police has no control to seize the keys or the cars.
However they managed to return more than 100 cars after speaking to landowners and other agencies, including local councils.
Police said there are still around 30 keys to cars which have not been found.