Take a consumer SSD and put it in a deep freeze to -50C look it still works!
See what the data retention is like after it's been parked for a few years in Arizona.
$EMPLOYER builds chips for the auto trade (and not just under the hood.) As a matter of fact, I design chips for the auto trade. And they are serious as death about data retention across temperature and have the hard data to show why. Those HDR (high data retention) chips cost more, and if there's one thing I've learned in almost 40 years of making semiconductors for the auto industry, they never spend a penny more than they have to. As far as they're concerned, every penny they spend has to be surgically removed from the CEO's nutsack.