The only thing is that I'm convinced that the Â£42K 007 gear knob was the one from the film - oh dear!
Do you mean "... was not the one from the film..."?
I had thought the same. The effects car, being the prototype DB5 would have had a 4 speed DB box. I just wasn't sure if, for the film, somebody thought to "update" the knob to advertise that the DB5 had a 5 speed, which was pretty cool in those days. But I don't think anyone at AML was thinking about things like that in those days.