Yes, you can get 3 day hopper passes. There are rental cars available at the Swan/Dolphin or at some of the downtown Disney area resorts(the ones inbetween that shopping center with Goodings Market & DTD marketplace. Not certain which companies are at what hotels, we have always rented at the airport.
Our last trip over Thanksgiving was a grand gathering 3 families with 9 "kids" ages 16-28, only 2 of them girls. They did love all the thrill rides EE, Space, Splash, RRC, ToT, Test Track, Misson Space, etc but just as important were things like Buzz Lightyear, Pirates, Haunted Mansion, Dinosaur, Star Tours. We have been several times & they still enjoy rides that they liked as young children so you might be surprised by what he still wants to do. We do split up. For instance my son loves Buzz but doesn't really like Space Mt(he'll ride 1x but that's it) so he'll do Buzz over & over while we ride Space again, see Carrousel of Progress, ride the people mover. Frontierland shooting arcade is still a big hit in th MK & they love Innoventions in Epcot. We still ride some of the rides in Fantasyland(Peter Pan is a must do) & loved Mickey's Philharmagic. We skipped IASW, Dumbo, Tea Cups, Stitch, Tiki Birds, Aladdin's Magic Carpets & toontown fair,the river boat, afternoon parade & character shows but did everything else in the MK for example.
Places to eat, how about the Sci-Fi Dine in Theatre in ST? Whispering Canyon Cafe in WL, Rainforest Cafe. Hope this helps a bit.