Made You Look by Diane Roberts

Made You Look is about a boy called Jason who is willing to do just about anything to be a maniac - a contestant on the planet's ultimate trivia game show, Masquerade Mania. But when his parents surprise him with a vacation in Los Angeles, where the show is filmed, he's really excited.Until he learns the awful truth: Airline travel isn't part of the Percy family itinerary. Instead of flying , they'll be trekking cross-country in a camper that looks like a giant sardine tin. Jason must survive annoying car games with his annoying diva-in-training sister and her younger, diaper-wearing counterpart before arriving at the big moment. 

Overall I figured the book wasn't that bad but the ending was fantastic! This book isn't in the school's library but I have so you can borrow it if you like.