Planetary Vehicles
Planetary vehicles are further subdivided into ground vehicles and air
vehicles.
Ground Vehicle
The most basic vehicles in the Star Wars universe, ground vehicles only operate on (or very near) a planetary surface.
Airspeeders
Airspeeders are repulsorlift vehicles that can travel anywhere up to about 300 kilometers above ground level, but they are incapable of true space flight. Because they fly so high above the ground, they ignore penalties for terrain or obstructions. Of all planetary vehicles, airspeeders are the most maneuverable.
Air Vehicles
Air vehicles generally operate above a planetary surface, but within the planet's atmosphere.
Speeders
Speeders and repulsorlift vehicles are common sights on the technologically advanced worlds. Equipped with repulsorlift drive technology, they hover above the ground at a height of anywhere from a few centimeters to several meters and can achieve remarkable speeds. Speeders and repulsorlift vehicles ignore penalties for difficult terrain.
Tracked Vehicles
Tracked vehicles have treads or tracks looped around a large number of wheels, providing great traction but making them less maneuverable at higher speeds-and extremely loud at any speed. Tracked vehicles ignore penalties for difficult terrain and take half damage from collisions with obstacles at least one size category smaller than them.
Walkers
Walkers move about on two or more legs, literally walking over the terrain. Walkers retain their balance by means offinely tuned gyroscopes and offer a fairly smooth ride. They rely on even footing, however, and when they topple, the results can be disastrous. Walkers ignore obstacles that are three or more sizes smaller than them.
Wheeled Vehicles
Wheeled vehicles move on one or more wheels (most commonly two to four) . Faster and more maneuverable than tracked or walker vehicles, wheels are a cheap alternative to repulsorlift technology for light and fast vehicles.