Why+steam+engines+arent+used

Some of the reasons we don't use steam engine cars anymore, might be due to things such as if there were ever to be a traffic accident, both the cars would explode, and there mighht be a chain reaction, because cars behind might just catch fire. Also, a steam engine takes a long time to start up, and it doesnt have as much horsepower as a normal car would. In addition, the water would freeze at 0 celcius degrees.

Source: [|www.fluther.com/97272/if-the-steam-engine-is-more-efficientwhy-do-we-not-have/]

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