I thought there was a thread about this car but I can't find it. So apologies if it's been posted before.
Not mine, not affiliated.
Also up on Car and Classic website...
www.carandclassic.co.uk
So at least we know how much they want for it!
Not mine, not affiliated.

BMW 3.0 CSI 1975 BARN FIND FOR SALE / 2800 CS / CSA / CSL | eBay
BMW introduced a new two-door coupé that was built for BMW by Karmann in 1968 and production lasted until 1975. The 2800 CS used the 2,788cc version of the engine used in the E3 sedans and produced 170hp.
www.ebay.co.uk
Also up on Car and Classic website...

1974 BMW SM in London, United Kingdom - Wanted | Car & Cl...
1974 BMW SM in London, United Kingdom - Wanted | Car & Classic, £5,000 Bmw 3.0 csi 1974 e9 / all jaguar / mercedes wanted top price paid...

So at least we know how much they want for it!