The Honda Insight already does most of this. The MT Insight uses 22:1 lean burn technology under light loads but is not SULEV as this claims to be. The MT Insight can easily achieve 90-100+ mpg highway depending on conditions, terrain, and driving style, etc. - even I can do it. The "ale" looks to have less interior room than an Insight but probably has more performance (though the Insight is no slouch).

This fuel vapor thing is interesting because ALL gas engines ingnite fuel as a vapor, not as a liquid - or at least TRY to. Perhaps they vaporize the fuel before it gets to the engine and deliver it as a gas? But do they then lose the heat of vaporization, and is that important in cooling the cylinders?

John

2006 Insight MT
2003 Subaru Outback
1999 Honda VFR800