The Head unit was modified and indeed is much better, also the autonomous driving safety features have been added. Its excellent, I hav a 2021 Atlas CS, Premium, SEL V6 Rline and love it!!Saw a used 2021 on a lot... dealership said it was traded in on a 21.5. Haven't heard details.
between 2021 and 21.5 on an SE 4motion, no sunroof, v6... what changes would have been implemented?