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Because a car won't explode due to malfunction, and not on your reproductive organs.

That makes no sense. Why do you think motorcycles are called "crotch rockets"?

For their speed/weight ratio? Certainly not because they typically don't explode... Outside of Schwarzenegger films.

Contrary to what Hollywood tells us, mopeds, bicycles, cars, trucks, motorcycles, and boats almost never explode (Airplanes occasionally explode. Rockets frequently explode.) They certainly don't explode as frequently as your average laptop battery.

Anytime someone blithely talks about including an oxidizer (or oxygen) into the mix, it's good to remember all of what you just said. Highly reactive elements and oxygen are far more scary in general, and given enough oxygen pretty much everything becomes highly reactive.

That being said, while a car won't explode, they sure as hell do burn.

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