Well I guess I opened a can of worms?
The idea was good ---in principle----!!

Having got my object right it seems, now, I will also have to orient it's "direction" through a variety of key frames---without that it moves "backwards" through some of the sequences!

(Proves, again, whilst as a pro still photographer, I failed to ever be able to make good movies!)

Brian

ps Appreciate seeing any efforts by others to utilise that  Browser Space.car file for creating additional ideas.

bwtr