In this article about a 4.5ltr Bentley. The son of the late owner of the Bentley refers to his dad also having had a dismantled Cobra in his bedroom! In view of the Bentley, it is not so unlikely!
http://www.telegraph.co.uk/news/newstopics/howaboutthat/11842473/Bentley-rebuilt-from-parts-scattered-around-mans-home-could-sell-for-800000.html
http://www.telegraph.co.uk/news/newstopics/howaboutthat/11842473/Bentley-rebuilt-from-parts-scattered-around-mans-home-could-sell-for-800000.html