One of the best moments in car talk was when Astronaut John Grunsfeld called in to complain about how his government vehicle, a 'Rockewell van kind of thing' was running. Ray and Tom finally caught on when Grunsfeld admitted he was going 17K MPH while a couple hundred miles north of Hawaii. ;)

The banter between them included memories of an unpaid bill and references to the 'small technical institute' nearby ("Oh, that place!").

Great stuff all around. https://youtube.com/watch?v=moAqzM4ptm8