http://www.pistonheads.com/news/default.asp?storyId=17619
Hope it’s true, but this rumor has been floating around a long time, so I think it’s a pretty safe bet.
mmbmw
edit* found this tho
http://www.motorauthority.com/wp-content/uploads/Lotus/Esprit/Spy/lotusspy.jpg
and there is another full size that doesnt seem to be working, but the image is there
http://images.google.com/images?source=ig&hl=en&rlz=&q=BMW+powered+Esprit&um=1&ie=UTF-8&sa=N&tab=wi
^^see the 3rd image on the second row? full size doesnt work