I have NEVER in my 66 years regretted an impractical car purchase. I've made a number of them, and I've enjoyed the hell out of every one.
My last one was a 1983 280ZX Turbo, bought in 1990 when we had two young kids. But we had a family car (Audi 5000 sedan) and so it didn't matter. I still have the 280, my kids and wife love it, and I'm glad I still have it.
I learned years ago while selling cars that NO ONE drives the car they need; they drive the car they want. Nearly everyone who doesn't tow horse trailers through muddy fields, drive a pickup through 12" of freshly plowed dirt or harvest timber up a mountainside could do what they need to do with a 4-door, basic AWD sedan. But that's not what we buy.
We buy cars that reflect our wants and needs. If someone drives a stripped down econobox, that's a statement about values. Same for a corvette, same for the jacked-up toy pickup with loud pipes that will never see a load in the bed. Same for tricked-out mom vans.
If the OP wants a latter-day muscle car, GO FOR IT. A car purchase isn't forever. Enjoy it while you want to.