To be fair, I'm not sure any car's paint can withstand that kind of direct sandblasting. My Mercedes SUV didn't. Yes, that's how I know not to get black paint anymore. The problem is that the Tesla design went for maximum aero efficiency. In order to mitigate the sandblasting, they should pre-install mud guards, or at least give them to the owners, like the license plate brackets. Then, they should also cover the rockers in PPF, or put an ugly plastic under panel in a dark color like other manufacturers. That should cover all the trouble areas, because you can see how the sand would annihilate the rockers, the lower section of the doors and the flared section right before the rear wheels. I've installed carbon fiber mud guards, because I could see that the dirt clinging to the lower sides and back of the car, had to be coming from all the dirt being thrown up by the tires. I will also order the PPF for the rockers, which will cover that flared section right before the rear wheels, that gets surprisingly sandblasted. If I were the Finns, I'd ask for the rocker panels be replaced, by Tesla, and the new ones PPF'd. And a set of mud guards be provided that can be installed for the Winter, just like when you switch to snow tires. I know some countries have stronger consumer protection laws. That's fine, the cost is usually built into the price. Here in the US, I don't expect Tesla to do those things, because none of the mfrs in the US do it, and so our price reflects that. I know I have to go out and do it for myself. On the other hand, that Northern Cali damage is amazing and Tesla should be proactive in alerting their customers on how to mitigate the issue.