My grandpa spec 2004 Crown Victoria had the tan/beige "leather" seats and they held up very well (bought the car in 2008, sold it to my dad in 2015, he's still driving it). Some wear and tear but no holes. I made sure to keep it clean and conditioned as best I could.
As for burning my legs, window tint, Ventvisors, and windshield sun shads helped a lot. I also kept a towel for days that I was getting in the car filthy from the range or when I was wearing shorts.
My replacement for the CV was a 2011 Explorer that spent its entire life (before I owned it) in Merritt Island. It's got black leather and has the A/C seats and remote start . . . that very nice for the warm weather down here. I still do everything I did with the CV as far as taking care of the leather and other items (ventvisors, sunshade, window tint, etc) and at 7 years old and 108k miles the interior still looks good even after 2 years toting a wee one and a dog around. L