Our family just listened to Science Fair by Dave Barry and Ridley Pearson. Although this book is by no means as good as their Peter and the Starcatchers series, this is a good road trip book, especially for kids (and adults) who like that gross, bathroom style humor that Dave Barry is famous for. The story centers around a group of terrorists that are trying to control the world by sabotaging a school science fair held in a Maryland suburb. With characters names like Grdankl the Strong from the country of Kprshtskan (which seems to lack vowels), the audiobook is laugh out loud funny and narrator Phil Gigante has no problem spouting out vowel-less names and sound effects that add to the humor.