Maybe my car's AC is underpowered, but I get much sweatier from a 15 minute drive in my car with the AC cranked if my car's been sitting in the sun (with black

Maybe my car's AC is underpowered, but I get much sweatier from a 15 minute drive in my car with the AC cranked if my car's been sitting in the sun (with black paint, black leather, moonroof) than I do from a 15 minute walk in the same sun.