Well after trying to fit. My 51 yr. old. 6.4 inch, 260 pound body in a Corvette. I plan on keeping the Mustang forever. Was planning to trade for a Vette. But that car is just to damn uncomfortable to be trapped in. Getting in and out is a gymnastic move for me. So a supercharger and coilovers are going on the Mustang. And it's now a keeper.
I dunno, my last car was a 2001 GT that I bought in 2003 and kept it until 2015.
This was the first (and probably last) time I bought a brand new car. I'm Definitely keeping my 2015 until it's paid off, which is just under 4 more years. I love my 5.0, but don't play the trade up every couple years game that a lot of people do.