The Energon Pub

The man responsible for the Ark Compendium's released by IDW; Jim Sorenson has updated his blog Disciples of Boltax with a look at the extended Bio for G1 Roadbuster.

According to Jim (reference not intended) Roadbuster was never added to the Marvel Universe Books as he never had a character model:

One of the things that I've come across in my model-hunting are show and comic bibles. These include extended bios for some characters, longer than the tech specs. The good folks at Marvel turned some of them into the Transformers Universe books, by coloring in the character model and including the extended text. Unfortunately, some characters didn't have character models and subsequently got left out of the book.

To read Roadbuster's Full extended Bio, please click here.