Depends on whether it has leather or cloth seats. I wouldn't buy a car with tan interior and cloth. It just feels and looks cheap and it gets dirty too quickly. My last two vehicles have had gray interior and my current car has a black interior (which is okay but like you said, too hot in the sun).
My wife's car has tan leather and it looks really nice. I prefer it to my car but they're both nice inside so I can't complain too much. I didn't really have much choice with my car as there were very few to choose from in the SoCal area. They just don't sell very many with the V8 engine so it was literally a choice between 3-4 cars and I had been looking on and off for a few months.
Maybe its the leather vs cloth..
My Chrysler was Leather. Her tortise was cloth.
Her current car is a 2010 Edge. Its hot, but the AC cools down the car quickly. Its got rear and rear side windows all tinted, then some kind of transparent UV blocker in the windshield and front side windows ... Ford stuck a powerful AC in there too .. It was in the 90s outside and Inside the car, I made it feel like a refrigerator.
In my forester, it feels a bit like being in a slow oven when the mercury kisses the top of the thermometer. (AC was never great in any subaru). Anyhow, maybe I'll spend the $$$ and get the windows done as it might help quite a bit.
In approx 3 years and I will be car shopping for myself ... something with leather, and maybe not a v8, but something with a lit better power to weight ratio than my 08 forester.