Factual error: The machine gun set up on the motorbike wouldn't work. The bullets wouldn't be able to be fired out of the indicator lights as the lights are too small and there is no firing mechanism fitted to them.
Continuity mistake: In the identification room Bond and Q both have their jackets on, but when Sharon comes in with the tea they both have their jackets off.
Suggested correction: This is a way of showing that time has passed and they have been in there for a while.