DETROIT — General Motors will add four full-sized light trucks to its XFE trim line for 2009. Lighter weight, better aerodynamics and drivetrain tweaks boost fuel economy by about 1 mpg.
New XFE models are the Chevrolet Silverado pickup and Tahoe SUV, and the GMC Sierra pickup and Yukon SUV. There are XFE versions of the Chevrolet Cobalt and Pontiac G5.
All four of the new XFE vehicles are EPA-rated at 15 mpg city/21 highway. The regular 2008 versions are rated 14/20 mpg.