1 Bad Mirada did a great job of addressing it from a technical standpoint.

Let me try to address it from a practical standpoint.

Will this be your only car or will you have another. If this is your only car, then it will be your daily driver. That being said, do you have
fight traffic everyday during rush on the expressway in a major city or do you live in a small town/community.

If you are in major traffic, get a automatic.....bottom line. If this is not your daily driver, then get a manual.

You know this already but using cellphone and eating burgers with an automatic is bad enough, but with a manual, this just asking for an accident waiting to happen.

Since the Challenger is a car to experience with a manual, you really don't want to experience it in rush hour traffic, day after day and year after year.

You may get a left calf that looks like Charles Atlas.

If you are going to keep it that long of term, you can eventually put in a manual when it is not your daily driver.

Those are just my thoughts. Have fun in it above all else and drive safe.....we want you around on the forum.