>dual electric motors will move the truck smartly down the road using only electricity from the battery. The 3-cylinder range extender motor sourced from BMW is

>dual electric motors will move the truck smartly down the road using only electricity from the battery. The 3-cylinder range extender motor sourced from BMW is just there to replenish the battery when needed. Sounds like a series hybrid to me. On some series hybrids the engine isn't connected to the wheels at all.