Well, Which Is It?

This is the headline: Next Chevrolet Volt can run up to 96 miles on batteries.

This the story:

The next generation of the Chevrolet Volt will be more efficient, longer running in all-electric mode. GM says that the model should be between 80 and 96 km of autonomy that option and can reach even more. The change is part of a strategy to make more attractive the electric Chevrolet. In studies, GM was found that 80% of drivers rotating hybrid on average less than 64 km per day, showing that the potential exists to increase.

I'm confused. Which is it? 96 miles or 96 kilometers?

Big difference.

Remember: headlines are not written by the guy who writes the article.

The story itself, which appears to be a paid advertisement, says the Volt "... can reach even more." Well, if it can, why don't they say "how much more"?