Police are appealing for witnesses after a Porsche Cayenne was stolen from a Mornington car yard a week ago.
The white 4×4 Porsche, bearing registration plates ABF 179, was stolen between 7.30pm on March 9 and 7.30am the next day.
Over the past two nights patrolling police have seen the vehicle a number of times in the Frankston and Seaford area.
Due to the erratic behaviour of the driver, driving at high speeds, disobeying traffic control signals and travelling with no headlights on, police have not been able to intercept the vehicle.
The Porsche has been seen on the Dandenong-Frankston Road, Sussex Street and Bellevue Crescent in Seaford, on the Frankston Freeway and on Ballarto Road.
From various reports it appears that the driver, who is usually the sole occupant, has been changing the registration plates each night.
When the car was last seen, earlier this morning, the registration plate was 1DT 2LC.
Anyone who sees the vehicle or has any information is urged to contact Crime Stoppers on 1800 333 000 or they can file a confidential report at www.crimestoppersvic.com.au