For the grand reveal of the new movie Jungle Cruise, Emily Blunt was brought on onstage in style, with a 4 door open touring pre war car, which was on an electric motorized dolly, cable running offstage to a controller. In theaters October 2019.

but since very very few people are allowed to take photos inside that room during the D23 Hall "Disney, Behind the Scenes" these are the only photos I've found of it

Dwayne Johnson came into the hall riding a legit Jungle Cruise tour boat on wheels that was between the stage and the fans

https://www.longroom.com/discussion/1605591/disneys-jungle-cruise-movie-footage-sails-into-d23
https://twitter.com/DisneyStudios
https://d23.com/fantastic-live-action-and-animated-films-showcased-at-d23-expo-2019/
https://www.thewaltdisneycompany.com/disney-presents-upcoming-live-action-and-animated-movie-slate-at-d23-expo-2019/

https://www.facebook.com/JungleCruise/  for updates and more photos