Did I read scoop on this splash before? Or has Autocar taken that boast off already?
This isn't a newsstory broken by Autocar. The German auto press reported it a month ago:
http://www.autobild.de/artikel/vw-up-doch-mit-frontmotor_722663.html 19.6.2008
'Der Mini soll aus Kostengründen doch keinem Heckmotor bekommen.' The car[Up!] will out of cost reasons no rear-engine get however.
AutoBild was one on many in Germany to have reported this. And note, I think you are are being sent a curve ball by VW UK Press on the involved, manifold technical reasons for no rear engine. It is as was reported already predominantly down to cost and economies of scale with platform sharing.