Ummm... I think you guys forgot the Lotus Evora. Lotus is far from "pulled back" from the US market. IN fact the Evora was designed for North America.

I wish Caterham the best in their endeavor. It's a competitive market and as you mentioned, there are significant hurdles to overcome on the road to production. That said, talent like Phil Holland and Tony Shute have already proven an ability to pull together such endeavors.