Which is faster: a 2005-2009 Ford Mustang GT or a 2006-2009 Chevrolet Impala SS?

Which is faster: a 2005-2009 Ford Mustang GT or a 2006-2009 Chevrolet Impala SS?

Read more: Which is faster: a 2005-2009 Ford Mustang GT or a 2006-2009 Chevrolet Impala SS?