Whilst not rude it is very hard to get any uninformed person to take them seriously as the conversation goes something like;
'What sort of car is that?'
'A Goggomobil.'
'Never heard of it, its not a real car is it? Who made it?'
'Goggomobil did, part of the Glas group.'
'Where was that, then?'
'Dingolfing, Bavaria.'
'No. I do not believe you. Dingle thing indeed.' Walks off scoffing while you attempt to point out it is now a BMW factory. Its Egon Bach all over again!
That said I am not sure a Frisky Prince was the best marketing in San Fransisco unless you were of a certain persuasion! They still do it now. VW Toureg - no I do not want a vehicle named after what we believe are unreliable Arabian cut throats, for instance. VW Ponce sounds more likely.