This week on The Best of Car Talk, Ed is building an airplane in his garage. It's not a model plane; it's one Ed actually intends to fly in. If you need more evidence that Ed has questionable judgment, he's asking Tom and Ray for advice on choosing an engine. Elsewhere, Cindy suffered CO poisoning, accidentally drove 70 mph in 3rd gear, and killed her engine. Subaru replaced it under warranty, but Cindy is feeling guilty about not giving them full disclosure. Also, Diane needs help convincing her husband to drive his shiny new pickup and stop throwing money at his ancient Chevy Citation; and meet our new superhero, Captain Destructo! All this and more, this week on The Best of Car Talk.