Strange things are happening in El Coche, and the anxious cars want answers. Why does Diesel's gasket keep blowing? When will Bumper's odometer stop rolling backwards? How long can Fender run on fumes? Luckily, Sparky's on the case. He's eliminating suspects, gathering clues, and closing in on the culprit - until a souped-up coup accuses him of sloppy sleuthing. Now Sparky's in a race to solve the mystery before he's hauled off to the junkyard. Join the world's favorite little red sports car on a nail-biting whodunit adventure in which everyone's guilty of something. And nothing is what it seems.