Season 4 Episodes6
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Ranked #6 of 6 in Season 4•−0.3 vs season avg
How a spacesuit keeps an astronaut alive, the diesel engines that power the world's biggest ships, and the manufacturing processes behind the famous neon signs which cover Las Vegas
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"Family Car, Titanium, Letter" is episode 2 of How Do They Do It? season 4. It scored 6.9/10 from 14 votes, ranking #6 of 6 episodes this season (season average 7.2). It aired on April 11, 2007.