Serial hybrids, where the ICE is just a generator charging a battery, should be just as reliable as ICE vehicles. But hybrids where you need to swap the power

Serial hybrids, where the ICE is just a generator charging a battery, should be just as reliable as ICE vehicles. But hybrids where you need to swap the power output between the combustion engine and electric motors are _really_ complex and have way too many parts that can fail.