A sand bottle assembly on a golf car includes a bottle and a mounting bracket. The bottle is defined by a longitudinal hollow body having a bottom portion and a top portion. The hollow body defines a vertical axis. A spout is formed at the top portion and is adapted to dispense sand contained in the hollow body. An extension portion is disposed along a sidewall of the hollow body. The extension portion includes a raised sidewall portion. The mounting bracket is adapted to be connected to the golf car and matingly receive the extension portion of the bottle in an installed position. The mounting bracket defines an engaging portion adapted to engage and retain the raised sidewall of the extension portion in a secure position along the vertical axis in the installed position.