The 2011 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 2008 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2013 Chevrolet Impala runs on flex-fuel (unleaded/E85).
The 2004 Chevrolet Impala runs on regular unleaded.
The 2005 Chevrolet Impala runs on regular unleaded.
The 2001 Chevrolet Impala runs on regular unleaded.
The 2014 Chevrolet Impala runs on regular unleaded.