This week on The Best of Car Talk, a certain motor mouth puts his mouth in gear, as Tom tells the world his wife looks like a truck. And guess who’s listening? Along with this classic moment, Tom and Ray try to figure out why Marc’s gas mileage dropped by 20 percent after a tune-up; whether Bob can set off a bug bomb in his car without killing himself along with the flies; and if Kara’s Subaru can survive after she filled the gas tank with water. Also, is Ronnie going to suffer a fried tuchus if she buys a black car in the Sunshine State? All this and more, this week on The Best of Car Talk.