Its hot here, 3rd week of off and on "intense heat warnings" about 85-101 in the day depending on how far you are from the beach. Contrary to popular belief, all homes in So. Cal dont have A/C so the kids room got the window unit and we got the roll-away but it stays in the living room as thats...
I did that trip in a newer (and faster) car. Austin (Fredricksberg) to LA, 16 hours and change. 2pm to 6AM averaged about 95 nonstop until CA high desert. I took the low route. SC400, nice road car. Every highway EXCEPT CA's were awesome. CA's suck.