The drive train with 2 chains at 21 seconds shown being assembled is not the one shown running at 37 seconds, why would they do that and not explain it unless there was something funny going on?
No mention of emissions - that's because rotary engines have always been very powerful for their size/weight but have filthy emissions, this can be resolved by feeding the dirt back into the engine but that kills the power/efficiency
Maybe they should get together with Moeller Sky Car and Coates Rotary Valve Engines and build a Greater Than Unity Efficiency Machine, the same investors would probably like that too
