Dash

Dash is a hidden invisible character in Car's Life 2. He barely has only one line "Bye, Speedy". It is unknown who's relative is him.

Trivia

 * Like Dash, There is another hidden invisible character; a kid who's only restricted to shouting "Hey Sparky!" and honking the horn a few times.
 * Like Fender, Dash is named after a car part too as well (it may be possible that Dash could actually be truly Fender's relative rather than Speedy's or Zipper's relative although he actually interacted with Zipper and Speedy.)