Here are the actual Lotus sales figures.
Lotus Elise / Exige U.S. Production Figures 2005 to 2011 - LotusTalk - The Lotus Cars Community
They plan to do as well as they did back in 2005 with the introduction of the Elise.
Maybe not so far fetched.
However, I don't know enough to even start guessing why the sales dropped like a rock from Mars.