Seven cars belonging to policemen and one belonging to a judge were set ablaze on Friday, Al-Ahram's Arabic news reported.
The vehicles, located in Greater Cairo districts of Moqattam, Nasr City, and Giza, were burned by unknown attackers in the early hours of Friday.
The attacks were carried out with molotov cocktails on cars parked under the officers' homes.
Another car incineration occurred in the Nile Delta city of Tanta. According to Reuters affiliated website, Aswat Masriya, the car belonged to a judge presiding over cases of Muslim Brotherhood members and supporters.
The Brotherhood has been facing a security crackdown and accusations of terrorism by Egyptian prosecution since the ouster of former President Mohamed Morsi. It has continuously denied any involvement with violent attacks on the police and armed forces.
Over the past few months, two senior officers have been shot dead near their homes and dozens of other police and army personnel have been killed in attacks claimed by the militant group Ansar Beit Al-Maqdis.
The Brotherhood was accused in February of forming an armed wing in the Upper Egyptian governorate of Beni Suef, an allegation the Brotherhood denied.
Hundreds of Brotherhood supporters were killed during the violent dispersal of their sit-n in opposition to Morsi's ouster last August and in brutal clashes that have followed.