The problem is more political and bureaucratical than technical. Just like toroidal cng tanks used all over the world but US and Canada. You know we have different physics laws here. In Europe convert carb vehicle to propane cost $500 and propane injection system is $1200 installed. This is really funny we can fly to other planet but can't make cheap pump for CNG. It smells very fishy......
But the reality is we live here and now and I don't want to wait until that better time...
Let's move on
