Please use the website, Enter your search criteria ( dates,times,location) and click on SEARCH.
At the top of STEP2 (above the individual car photos) is a scrolling left to right car type filter, where you can filter the results by car size, for example 7,8 or 9 seaters or convertibles where they are available. A credit card is required.
If no car photos are displayed, then adjust your date/time as not all locations are open weekends or out of normal business hours.