Dave:

-engine block heater discussion threads exist and can be worthwhile for winter use. I have an engine block heater.

-blockage for the radiator in winter months can be beneifical--again a thread exists on this. Cardboard is cheap (free!) and works. FIA winter guards (look for the photo in the photo section) are custom fitted but do not block the lower grille opening. You must block part of this grille opening to obtain results.

-side mirrors are mandatory in almost every state. Smaller ones might be less wind resistive but good luck in fitting them onto the vehicle--you have to remove the inner door panel and sail panel to access the three bolts/nuts holding the side mirror on. Your statement about folding mirrors--Overseas version of this vehicle do have power folding mirrors and the switch for this is where our coin holder is. There may be a thread on how to install a power side mirror on the Escape in the Escape-Central.com site. Don't expect to fold your side mirrors during highway cruising as this would be illegal.

I agree with the rest of Tim K post.

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. Aug. 2007

Best Interstate tank trip E30 MPG 34.6 for 271 miles along I-80 in Indiana and Ohio. May 2008

Best multiple road tank trip E30 MPG 36.2 for 202 miles in Southwestern Pa. July 2008.