Police are searching for 49-year-old Sandra Andrade who went missing in Quarteira last Friday.
Her car was found on Tuesday in Olhão, around 30 kilometres from her home.
Reports Correio da Manhã, a mobile phone was inside the car, but it is unclear whether it belongs to the missing woman.
The vehicle was towed by GNR police and taken to PJ criminal police in Faro.
Authorities were alerted by Sandra Andrade’s mother who had been unable to contact her daughter for days as her phone was turned off.
Adds CM, Sandra Andrade is a ‘TVDE driver’ – in other words, a driver for transport services such as Uber which are attributed a TVDE label.