The automobile is often a complex machine comprised of different components each having a specific role. Fuel is processed within the engine where it is changed into souped up that moves the vehicle. Exhaust from your combustion process is filtered to render emissions less harmful to the environment. The transmission system feeds more power to the engine for the car to increase its acceleration. The name Opal comes from three sources. One is the Latin word "Opalus". The second one is from your Greek word "Opalliois" meaning a difference of colour lastly from your ancient Sanskrit word "Upala" meaning precious stone. If one speaks of gemstone over these tongues the saying Opal would be Opallious upala, which suggests precious stone.Which shows of assorted colours when shifted against light.