Hi Mike and welcome. Enhanced Elite model P229's take the same features common to all Elite series pistols and combine them with the ergonomic one piece reduced reach grips used in Sig's E2 pistols. Cheers, stay safe and enjoy!

Hi Mike, the biggest differences are the Elite has a SRT (short reset trigger) and extended beavertail and undercut. There may be other not so noticeable subtle differences, but these are the 2 main ones.
Stay safe & have a great day!