Peter, I had exactly the same job to do for a B & O dealer in Surrey.
The graphics you have shown are as produced by the B & O agency I believe.
I got so Pi**ed with them keep moving the goalposts and being indecisive that I dumped them.
First it was a white mini, then a different colour, then after all layouts agreed, they changed to an Audi. The guy I was dealing with has a history of being a messer as I new him from his previous company, so I’m well out of it.
Personally I don’t like the newer B & O logo. It’s arty for arts’ sake – like so much stuff out of graphic agencies.
Good luck with it as it’s a pig.