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Dealer will like $12,000 down!
At your income you have $1,733 a month to use for debt payments. (assumes goal of below 40% DTI)
New Hellcat $70,000 + Tax (9.5%, you may pay less) = $76,650 - $12,000 down = $64,650
Payment on $64,650 @ 2.74% for 72 months is $974.77 a month (for SIX years)
This assumes you would qualify for this rate, hard to say with current history (you made no mention of scores?)
This leave only $759 for all of your other bills in the eyes of creditors who like to see your DTI below 40%.
Insurance.... Not sure about your age, driving record etc.
I recommend that you dream away but leave this one alone. Now would be a great time to really make a difference and prepare for the future. Stash as much cash as you can for the future. (getting off soap box) It is your money and life and ultimately your decision. Good luck and welcome to the forums!