Although vacuum brake boosters are almost ubiquitous, some vehicles use hydraulic brake boosters, which are powered by hydraulic pressure instead of vacuum. This pressure is provided by a drive belt-driven pump and may be tied into a hydraulic power steering system.
Unity Station. The exterior of Unity Station in Los Santos, San Andreas. Unity Station is a railway station in Grand Theft Auto: San Andreas located along the Brown Streak Railroad line in San Andreas.
Prominent appearances in GTA San Andreas. Unity Station is seen during the mission Cesar Vialpando, wherein Carl Johnson competes in a lowrider contest, and eventually meets Cesar Vialpando at Unity Station. The player can later choose to do lowrider contests again later on at Unity Station.