The I's and the E's??? Not a clue what you are talking about.
The 2014 Lexus ES-350 has a V6 engine.
The 2012 Lexus ES-350 has a V6 engine.
The 2013 Lexus ES-350 has a V6 engine.
The 2007 Lexus ES-350 has a V6 engine.
The 2008 Lexus ES-350 has a V6 engine.
The 2011 Lexus ES-350 has a V6 engine.
The 2009 Lexus ES-350 has a V6 engine.
The 2010 Lexus ES-350 has a V6 engine.
The 2014 Lexus ES-300H has an inline 4 engine.
The 2013 Lexus ES-300H has an inline 4 engine.
The 2014 Lexus ES-300H has a 2.5 L base engine size.
The 2013 Lexus ES-300H has a 2.5 L base engine size.