I'm not sure the resemblance is as obvious as being suggested but always great to see more attention given to the e9.
http://www.bmwblog.com/2018/02/27/rendering-bmw-gran-coupe-s-revival-iconic-e9/
http://www.bmwblog.com/2018/02/27/rendering-bmw-gran-coupe-s-revival-iconic-e9/