Registered on e9-driven in 2012. No real info. No mention of it on the forum.
https://classiccars.com/listings/view/1101597/1973-bmw-3-0cs-for-sale-in-rockville-maryland-20852
https://classiccars.com/listings/view/1101597/1973-bmw-3-0cs-for-sale-in-rockville-maryland-20852