This Veedol thing gets stranger and stranger !
The company is Australian, and deals in up market lubricants, grease etc.
The lady would appear to be 'Miss Veedol' and her name links with the plane below, and its Pacific record flight.
Why an Australian company logo should be so popular to German truck drivers, I don't know ?
Look up Veedol in google or wiki, there's loads of references but not much on the history.
I will put up more trucks from the Rally soon over the next few days.