Its an R&D company. Not a manufacturer. I've met them before at SAE conferences. There are about 4 other companies that are trying to do the same thing. The downfall is that EV's are killing the alternate engine market. In addition to that, these engines are more or less, great for steady state operation and not so great for something in a car. What these companies are banking on, are military and DOE contracts. Military for power generation and DOE for power generation from trash dumps and oil refineries. They are not 100% of the way there and thus why they need grants and funding to get it to a low volume production.