Quote:Hmmm... My understanding from what I've read is one of the reasons gas is so useful is that it yields an incredibly high amount of energy for it's mass... It doesn't seem like it'd be easy to match that without a much larger amount of air. Tanks containing that kind of pressure could present their own set of dangers.
I'm assume they feed the high pressure air into the engine pistons system and use the pistons valving to inject the compressed gas and remove it.
On the battery issue, maybe it's more reasonable to say that batteries haven't improved enough in the way that's needed. For electric powered cars, it sounds like energy density is the factor that's still lacking. Things like acceptable temperature ranges would of course be even more important for an electric car, but as you say significant improvements have been made there. Enough energy from something of low enough mass... not sure.
I still think power generation has issues that would need to be dealt with first though.
-Morgan.
"Humans cannot help Reyvateils."
-Mir