Elio is moving forward with developing their own engine.
Elio Motors shows first photos of engine block | TechnologyTell
This makes me even more worried. I am very curious to what features Elio needed in their engine that they could not buy "off the shelf"? Is it going to be more efficient, or more compact, have better crank/conrod/piston geometry, lean burn, etc.?
This will take a very long time. Emissions testing, durability testing, production issues - I can't think they can produce this engine 15,000 times in less than 4-5 years, at least.
Maybe, they will sell the first years of vehicles with an off the shelf motor?