Saturn sold 6,822 Ions last May. That's a big chunk.
The slow Astra sales are a little worrying, though. I think the main buyers are European ex-pats who know how popular the car is in Europe.
My mother-in-law was looking at one, and she wondered why the price was so high -- "It's just a small stupid car, why so much?" were her words I believe...
A co-worker was also looking at one, and wouldn't even look twice because of the price.
I do have a British friend who bought one -- he loves it.

He says they beat the crap out of the Focus in Europe...