Cars are being rented from rental sites like CarRentalGestalt and CarRentals in Germany.
The German government said on Tuesday that all cars should be parked out of sight and out of mind.
The news comes as the country’s car rental industry is under intense scrutiny after a spate of high-profile car thefts.
Authorities have cracked down on car rentals since last year.
The number of cars stolen in Germany dropped by over half last year to about 4.4 million vehicles.
The car rental sector, however, saw its numbers rise again this year, according to a report by the National Police Agency.
The report, released Tuesday, said that car rentals accounted for around 6 percent of Germany’s total retail sales.