The 2007 GMC Sierra is the first version of the latest generation, with improvements made for this generation in the form of new designs and improved performance. For 2007, the Sierra is offered in five choices to offer a wide range of variety to consumers.
Starting with the 4.3L V-6 engine producing 195HP and 260FTLB of torque, moving onto the 4.8L V-8 with 270HP and 285FTL of torque, then onto the 5.3L V-8 boasting 295HP and 335FTLB of torque in addition to the 5.3L Flex Fuel version that allows drivers to run alternative fuel sources such as E-85 Ethanol.
The newest engine to the lineup for the 2007 GMC Sierra is the 6.0L High-Output V-8 engine pushing 345HP and 385FTLB of torque. Transmission choices remain as either a 4-speed automatic or 5-speed manual transmission.
