There's mostly new cars in town but you still see plenty of old VW bugs and a few of the old vans.  My old VW bug might still be in service in California.  I hope so. I left it there in good condition thirty years ago.  After owing it for eleven years I sold it for $300 more than what was paid for it originally.  I wonder what it's worth now. The streets are all mostly one way in the centro historico.  Folks who need to park go to a ramp (estacionamiento) or they parallel park in the streets making them tighter yet.  Watch out for parking in restricted areas.  The local police will not only give you a ticket but they will unscrew your license plate and take it with them just to make sure you pay the fine.