All-Terrain Turbo-Transport

The All-Terrain Turbo-Transport is an Autobot shuttle in the Marvel Comics portion of the Generation 1 continuity family.

"All-Terrain"? Is this thing four-wheel drive?

All-Terrain Turbo-Transports are Autobot shuttles used to carry troops to and from a starship parked in planetary orbit. The top of the shuttle is a flat deck which can be used to position artillery or Autobots which can transform into artillery. All-Terrain Turbo-Transports were seen used first by Steelhaven and later the Ark.

From Teletraan I: The Transformers Wiki, a Wikia wiki.