Yes, on average a Toyota hybrid will save on gas. Overall gas savings should be measured in comparison with a similarly sized car that is not a hybrid.
The 2013 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2007 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2014 Toyota Avalon-Hybrid is a hybrid-powered vehicle.
The 2007 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2008 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2012 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2011 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2013 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2012 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2013 Toyota Avalon-Hybrid is a hybrid-powered vehicle.
The 2009 Toyota Camry-Hybrid is a hybrid-powered vehicle.
The 2010 Toyota Camry-Hybrid is a hybrid-powered vehicle.