Saturn Flextreme aims at 444 miles

The 2008 Saturn Flextreme may be a concept, but it shows that General Motors is serious about putting advanced, fuel-efficient hybrids on American roads in the not too distant future.
http://rss.cnn.com/~r/rss/cnn_tech/~3/217054246/index.html (http://rss.cnn.com/~r/rss/cnn_tech/~3/217054246/index.html).