The all-new 2014 GMC Sierra has undergone specific design changes to boost both fuel efficiency and interior quietness, after spending a major portion of its development time in a wind tunnel.
Read This Article
For the new model year, GMC is upgrading two of its top vehicles.
General Motors is leaner and meaner, but is it greener?
RelayRides, a San Francisco based startup, has just gotten a lot of help.