Bucking an industry trend toward smaller, more fuel-efficient vehicles, the resurgent Ford Mustang gets more muscular and more powerful for 2009. In preparation for its upcoming duel with the Chevy Camaro redo and the new Dodge Challenger, the 2009 Mustang will receive an exterior update to freshen its appearance. Expect to see a more aerodynamic front end, a streamlined rear end, and perhaps projector-style headlights. In the power department, the Mustang's V8 engines will get more powerful yet more fuel efficient, thanks to technology that shuts down four cylinders when they're not needed at cruising speeds. A larger 5.8- or 6.2-liter engine also might be dropped into the Mustang, up from the current top-of-the-line supercharged 5.4-liter V8 available on high-end Mustang trims. Updates to the 2009 Mustang should also improve handling and reduce body roll, and drivers can expect to see a more ergonomic, more comfortable interior. As a new option for 2008, Ford will offer a glass roof for those who want the view of a convertible but the structural integrity of a coupe. Made of specially formulated glass that blocks infrared rays, the roof will allow in light while protecting the occupants and upholstery, and will incorporate a retractable blind that can block out the sun and provide privacy. As in previous years, the 2009 Mustang will be available in a wide range of trims, including convertible and coupe trims, V6-powered trims, and Shelby GT500 trims, as well as trims with special packages. There also may be a special trim commemorating the Mustang's 45th anniversary.