There are many automobiles out there that can run on a combination of gasoline and natural gas or even entirely on natural gas, greatly reducing the amount of gasoline intake that is required. In addition to electrification, many public transit organizations such as the one in Toronto, Canada, have busses that run solely on natural gas or a hybrid of gasoline and natural gas. This allows them to save millions of dollars each year on their gasoline expenses.
Finally, one more fuel hybrid worth mentioning is the bio-fuel hybrid. This category has almost ceased to exist as automobile technology has allowed these vehicles to move from hybrid bio-fuel vehicles to fully bio-fuel vehicles. In fact, that same public transit organization is almost entirely powered by bio-fuel and other fuel hybrid busses to the point where there are very few busses within their fleet that run only on gasoline. Many other public transit agencies have taken that same cue and gone in that direction as well. If all goes well, we can assume that bio-fuels and other flex fuel vehicles will dominate the private and public bus fleets of the world within the next few years.
Be that as it may, the real hybrid vehicle that everyone wants to know about is the hybrid electric vehicle. With that in mind, let us begin the rest of our discussion by taking a close look at how the hybrid electric vehicle measures up with the completely electric vehicle. There are many similarities, but many differences as well.