DeLorean - First Breakdown in 1955
When Marty is unable to start up the DeLorean again at Lyons Estate in 1955, we see the plutonium gage light flashing red which suggests the car won't run without plutonium. However, in Part III Doc Brown says to Marty the car's always run on gasoline for its combustion engine. Where as the plutonium/Mr Fusion reactor powers the time circuits/Flux Capacitor.
Is this a retcon or continuity error? As later in Part I when Marty travels back he's obviously driving the car without having put plutonium in it. Yet the car's battery has died even though the car only needs gasoline to run.
If impersonating a Police Officer is an offence, shouldn't actors be imprisoned?