Hiring a car in Orlando gives you a much greater level of freedom on your Florida holiday, you are free to go where and when you want, car hire works out very reasonably when hired on a weekly basis.
Weekly rental rates can be as low for the smallest size of car, an Economy (or Subcompact), usually a Corsa-sized hatchback; next up is the Compact, a small family saloon like a Vauxhall Astra; the Midsize (or Intermediate) is a more spacious 4-door, 5- seater like a Vectra; and the Full-size would be a large-style executive car like an Omega, and you can go up the scale still, with Premium, Luxury and Convertible, plus the Minivan, a Renault Espace or VW Sharan type.
But beware these low starting rates. There are a number of essential insurances, taxes and surcharges, and these can easily take the final weekly rate to around $300 or more. However, all the big rental companies now offer all-inclusive rates, which can work out significantly cheaper if booked in advance.
Rates can be low and you also benefit from easier processing at the Orlando end, making the whole business quicker. Most holiday companies offer 'free car hire', but it is only the rental cost that is free and you must still pay the insurance, taxes and other extras.