A quick Google search brought me the information. It appears you may choose from the entire Toyota/Scion lineup, including hybrids which may help those who are on the fence about purchasing one, or would like maximum MPGs when taking their upcoming summer road trips. It is not immediately clear from the website if there are different trims available for the different models, or what models are actually even at your local dealership. You are directed to a form to contact them for more information, instead. Try Before You Buy – Toyota Rent A Car Program
This is actually very intresting, how a car manufacture, is willing to rent out cars, and let people test out their car before buying them. Its as if no other car manufacture will let you actually rent out their car for a week and see how well or bad it is biased on a person opinion.