The only way to really resolve this question is to ask the IRS, which I have not done . But I did look at the IRS web site. It does mentioned teh 2005 Escape but also refers the reader to publication 535. This publication lists the elgible vehicles by brand and does not list the year. Again, I think calling the IRS and getting a clarification is the best thing do to (which if and when I have time I'll try to do) but in the meantime, here is the relevant text from the IRS publication:
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Deduction for Clean-Fuel Vehicle Property

The deduction for this property may be claimed regardless of whether the property is used in a trade or business.

Clean-fuel vehicle property. Clean-fuel vehicle property is either of the following kinds of property.

1. A motor vehicle (defined earlier) produced by an original equipment manufacturer and designed to be propelled by a clean-burning fuel. These include designated hybrid gas-electric automobiles which, at this time, only include the Ford Escape, Honda Insight, Honda Civic Hybrid, and Toyota not qualify for the electric vehicle credit.Prius.
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This text comes from page 45 of IRS publication 535.