The 2004 Chevrolet Impala has a 4-speed automatic.
The 2010 Chevrolet Impala runs on flex-fuel (FFV).
The 2009 Chevrolet Impala runs on flex-fuel (FFV).
The 2006 Chevrolet Impala runs on flex-fuel (FFV).
The 2007 Chevrolet Impala runs on flex-fuel (FFV).
The 2012 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2011 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2008 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2013 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2005 Chevrolet Impala runs on regular unleaded.
The 2001 Chevrolet Impala runs on regular unleaded.
The 2014 Chevrolet Impala runs on regular unleaded.