Marty Brakeburst is a minor character in Cars. He is a Remirunabout Neuro. He always worries about the slightest thing that's gonna happen.
"Marty doesn't feel alive unless he's got something to worry about. Whether it's his receding tire treads, politics, the teenagers next door, fossil fuel running out one day, or the general state of the world, Marty is only truly happy when he's miserable."
- "Car Finder" (supplementary material on Blu-ray Disc release of Cars). 2007. Blu-ray Disc. Walt Disney Home Entertainment, 2007.