>The second difference is the Stirling engine is more efficient then the gasoline driven engine.

Gotta proofread this stuff.

Anyway, I was thinking recently about how a stirling engine could be powered by solar energy, and discovered that this is actually done. From wikipedia:

>Placed at the focus of a parabolic mirror, a Stirling engine can convert solar energy to electricity with an efficiency better than non-concentrated photovoltaic cells, and comparable to Concentrated Photo Voltaics.

That's cool, and I'm startled that it isn't mentioned at all on this kickstarter page, especially considering the first paragraph of the pitch.