Still learning Vray, this time tried using the environment fog thanks to Toby Lee for helping me out with the volumetrics.
I am such a fan of fog, smoke and tyndall effect; I even tried asking the developers at Keyshot to implement Volumetric lighting into their engine. But they said that the software is not made for Automotive Visualization but for Product Design and most of the manufacturers want their products to be ultra-clean in the advertising images so they may never implement it.