It's not unlikely at all. For hybrids it's the next step.
-----
The world’s largest carmaker said Tuesday that it would develop smaller #InternalCombustionEngines that are more optimized for #HybridVehicles and can accept #AlternativeFuels such as #biofuels, #LiiquidHydrogen, and synthetic #Efuels in an effort to cut down on emissions.

#Toyota’s bet on #hybrids was mocked, then vindicated. Now it’s trying to repeat the trick with an unlikely bet on the #CombustionEngine
https://finance.yahoo.com/news/toyota-bet-hybrids-mocked-then-202143372.html