Experiment with other combustible fuel sources

Automotive companies are constantly trying to find other fuel sources to power thier vehicles. Electricity, is among one of those that companies have experimented with, including Ford, but based on the performance figures, and the overall efficiency of electric vehicles, it has become apparent (at least to me) that electricity, is simply not the way of the future. My idea, is that Ford should try experimenting with other combustible elements on the periodic table, by using them within a normal internal combustion engine, while making the necessary modifications in order to properly utilize the element. For example, they could modify the spark system, the fuel injection methods, and overall engine reinforcement to effectively, and efficiently use the element. Through proper research, and experimentation, I belive Ford could eventually come up with a great alternative fuel source.