Toyota keeps delaying the PHEV Prius for a variety of reasons. There have been rumors their lithium ion hybrid battery packs have caught on fire! In early fall 2007, I read a first hand report that the PHEV Prius was being road tested at the Toyota facility in Japan with the existing battery composition but in a dual battery pack. This same article stated the EV range was targeted at 13 miles. In Jan. 2008, the President of Toyota stated the PHEV with lithium ion hybrid battery pack might arrive in 2011 but for fleet sales only and only a couple of hundred of these would exist because Toyota needed "feedback". The 2009 Prius is likely to arrive with the current hybrid battery pack but it may be later able to be fitted with a lithium ion battery pack.

There is a thread in Consumer Report on this issue "2010 PHEV PRIUS" with better details.

I'm on a dial up connection away from home as I attend to a funeral of a family member.

2005 AWD Escape Hybrid
Best Interstate tank trip MPG 39.02 (scangauge II) for 402 miles on I-70, 10.3 gallons used over mostly flat terrain.

Best Interstate tank trip E30 MPG 34.6 for 271 miles along I-80 in Indiana and Ohio.

Best multiple road tank trip E30 MPG 36.2 for 202 miles in Southwestern Pa.