I don't even know how you could consider any GT a "teenage car" because the insurance is murderous on one of them for a teen. Now, an SN95 or 05-09 V6, yeah those seem like teenager cars because I see a whole lot of teens and early-20 somethings driving them.
I don't care if anyone thinks my car isn't appropriate, I love it, my wife likes it (most of the time) and she knows that I love it. It's a little rough around the edges and a little obnoxious and that's what I like about it in a sea of well-mannered SUV's, crossovers and econoboxes.
I did however say when I bought it that it was my early midlife crisis car since I got it when I was 30. I paid it off last year, this year will make 5 years I've owned it, and I really don't see myself getting rid of it anytime soon.
2005 Mustang GT
CMS Stage 1 cams, Lito Tune, C&L Racer, CMDP, SR UDP, JBA LT's & catted H, FRPP Touring AB, Koni STR.T, BMR springs, J&M upper/mount, BMR lowers & brackets, J&M pb, Steeda Tri-Ax, Brembos
2009 Ranger XL SCab-4.0, auto, 4WD