some info here...
all 6 built to original spec apparently
seems they were supposed to build 18 lightweight ones back then, but only built 12.
Now they are building the 'missing' 6

http://www.dailymail.co.uk/news/article-...re-buy-one.html

http://www.telegraph.co.uk/motoring/car-...on-briefly.html

http://www.jaguar.co.uk/news/lightweight-e-type-is-reborn.html