#4 Fastlane was originally set to be called FastTrack
When WWE had decided to replace Elimination Chamber with Fastlane back in 2015 the company wanted to be able to make the show fit in with their illusion of a Road To WrestleMania.
This meant that the company wanted to state that they were on the "Fastlane to WrestleMania" which could be why one of the names that the show was originally set to be was FastTrack since that could have also fitted in with this play on words.
WWE enjoys making the graphics a car, so it seems that Fastlane or FastTrack would have been the best option when it comes to names for the event.
Edited by Kishan Prasad