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Tesla Vision fails as owners complain of Model 3 cameras fogging up in cold weather
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
You can also test driving in direct sunlight without sunglasses or the suncover. You get notifications and beeping noises whenever the sun hits them directly, making the lane assist (I refuse to call it autopilot) quite irrational in most weather... It's actually worse for me than driving in cold weather.