I never thought of an Autoshow as a good place for kids, but apparently in 2006 DaimlerChrysler was all prepared for them.
http://www.chicagoautoshow.com/show_history/default.aspx?d=2000&y=2006
“Kids had the opportunity to drive battery-powered mini Jeep Wranglers around a circular track on the show floor, situated next to the full-size vehicle driving courses in the DaimlerChrysler exhibit.”