You need to check out the XL1 - so that even when the battery pack is drained you can super-hyper-mile :happy feet: http://www.myelectriccarforums.com/volkswagen-xl1-formally-introduced/
Aren't most of us that are interested in a PHEV not necessarily in it to save money, but more because of the green factor anyways? I do agree that this technology won't be adopted by the masses unless the cost savings to become more apparent.
On the 'other' forum there was a writeup about speed. The person there figured the top speed only applies to EVNow mode and not to the normal hybrid driving mode. http://www.myfusionenergi.com/forum/viewtopic.php?f=6&t=77