I have seen no sales predictions. Only production estimates for Q4 2012 of 95 or 105 units depending on which release you choose.
Using Q4 production rates I would surmise at least 380 units could be produced next year not taking into account efficiencies gained during production process. TB has stated he would not be sitting on a large inventory thus I find if hard to believe he would predict only 100 units sold in 2013.
if you can remember where you heard this figure I'd be extremely interested.