Cathy, the Ford Escape FIA Winter Cover seen at this link:
http://www.tonnocover.com/productlin...ug_screen.html

will fit your Mercury. There is no difference between the Ford and Mercury in the size of the grille opening.

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.