We drove through France in 38C+ heat and no air conditioning back in 2019. I froze lots of small bottles of water and I literally drove with one inside my clothing to keep me cool.

We also stopped at services and didn't want to leave because the air conditioning was so nice. It was torture leaving again.

It's not the first time we have driven in heat but perhaps the worst car combined with heat we have driven in.

If you're interested, i wrote a story from that summer too: https://medium.com/the-memoirist/that-time-an-angel-mechanic-got-me-back-on-the-road-during-a-national-holiday-1193f8a670ce