"Gun Sled"

This sled is from the fictional Star Wars universe. (The name is not official, as this vehicle has never been officially named.)

Each of these sleds are mounted with an anti-personnel cannon and used to protect the hangars of Echo Base.

One of these units was briefly seen in the left corner of the screen when Han Solo rode into a hangar at the beginning of Star Wars Episode V: The Empire Strikes Back. In addition, a cut-scene showed Luke Skywalker using a sled of this type to fight off Wampas .

Hover Sled

This troop carrier is a vehicle from the fictional Star Wars universe.

White repulsor-craft seen in the background in Echo Base and the main hangar of Home One. Was enclosed on all sides, but without a roof. Could carry passengers and cargo.

During the evacuation of Echo Base, Rebel transport ships were loaded up with these troop carriers, and all fighter escorts were told to wait until each transport was filled up before taking off.

A hover sled brought the Rebel strike force to their shuttle before the Battle of Endor.

Personnel Carrier

Small open-air repulsor-craft used to carry personnel and some amounts of cargo around Rebel bases. The driver stood at the front of the vehicle, fully exposed, and all passengers sat on each side of the main platform, so this was not a vehicle meant for combat situations.

When the Millennium Falcon reached the secret base at Yavin IV, two of these carriers brought the crew and passengers inside the main hangar.

"Treaded rebel vehicle"

This vehicle is from the fictional Star Wars universe. (No official name.)

These vehicles towed the rebel artillery to the front lines before the Battle of Hoth, leaving thread-tracks on the snow and ice.

Never actually seen in the movie, only known by their tracks, which littered the ground. In real life, these belonged to the industrial type snowmobiles used by the film crew, but as an in-universe explanation they could be anything from tanks to APCs.