The parking in the street is safe,
sometimes it is not easy to find it in the street,
it depends by the arrival time.
Anyway it coasts € 4,00 per 8 hours
(from 8 AM to 8 PM) in blu lines.
It is for free in white lines.
A guarded car park:
(entrance from via Tunisi- Exit walking in Via Ostia)
is always opened 24/24 h.
it coasts about € 18,00 per 24 h.
I am so sorry but i have not get a private car park.
I am not an hotel 😉 just a B&B!