65 Dart Charger, CA car now in Southern IL.

Hi Guys, Still available at $5500.

At the risk of sounding more retarded than normal, can someone point
me to some resources on why these cars are so special and rare?

I was an E body man for almost 30 years and now I find I no longer
wish to invest that much. I've had 3 darts with the oldest a 70 swinger
and would like to go even older.

Is this a numbers matching car?