A hire car in the walkable parts of this city is not a convenience. It is an object you pay to store, repeatedly, in the most expensive places available.
Parking costs, in bands. South Beach meters run around $4 an hour and city garages roughly $20 to $30 for a day. Hotels on both sides of the bay generally charge a nightly self or valet rate on top of the room, and on the island that figure can be a meaningful fraction of the room rate itself. Valet in the entertainment district runs $30 to $50 plus the tip.
Two cities, two apps. Street parking is metered and paid by app on both sides of the bay, and Miami and Miami Beach use different operators. Download both before you need either, because you will be standing in a loading bay with a meter running when you find out.
Three places where finding a space eats real time. Wynwood after seven on a Friday or Saturday, which is the hardest parking in the county outside an event and where private lots on the numbered streets price accordingly. South Beach between noon and sunset on a winter weekend, where the answer is a municipal garage rather than a kerbside space. And the Grove village centre on a Saturday evening.
Enforcement is brisk. Residential permit zones mean exactly what the sign says, including the hours at which the rules change, and the tow lot is not a myth. During the busiest mid-March weekends, Miami Beach has restricted vehicle access on and around Ocean Drive entirely, and those arrangements change year to year.
Tolls are cashless and quietly expensive. There are no booths. Tolls are read from a transponder or photographed from the plate, and rental companies enrol you in a programme that adds a daily administration fee, frequently charged for every day of the rental rather than every day you use a toll road. A $12 week of tolls becomes a $60 line on the invoice. Ask at the counter, and ask specifically about the daily fee.
And leave nothing visible in a parked car. Beach lots, trailheads and garages, in daylight. Break-ins are the single most common thing that happens to visitors here. Pack the boot before you arrive, not in the space.