4. The Viper was almost the Challenger.
Head of Global Product Development for Chrysler at the time, Bob Lutz went through many different names while creating the Viper, including Asp, Python, and Sidewinder, before rejecting them for various reasons ("you didn't want 'Sidewinder' because... you could see all kinds of buff-book headlines with the car going sideways"). Once he settled on Viper, the marketing team fought him, wanting to use the Challenger moniker to conjure up images of Dodge's muscle car past. Thankfully, they lost.