In the late 1960s — early 1970s, British TV series ‘The Freewheelers’ was quite popular among young people. It was about a group of teenagers who get caught up in the plans of an ex-Nazi officer. But the most important thing for us is the fact that Stimson Mini Bug starring this series.
You will find two Stimsons in this YouTube compilation: the orange and yellow. But this appears to be not the case. There was definitely only one Mini Bug used, ‘RPX 885K’, you can also see the registration a few seconds earlier in the Halnaker scene. The orange colour is the result of auto correction on the screen grab.