11-14 is Gen 1, 15-18 is Gen 2 & 19-24 is Gen 3, the horsepower is a little different in each Generation & paddle shifters for the auto aren’t until 2015 too if you wanna go that route, hope that helps 💪🏾
My 2020 Cali Special was 39k OTD with 9k miles and every option, my previous Gen 2 401A was 26k OTD with 60k miles. COVID really fucked the market but it is starting to recover.