There's no proof either way, so we must weigh facts ourselves. Which lie is more likely - an embarrassed driver who wrecked their new Tesla at 50 over the speed limit in a culture that values saving face, or a company with deep pocketbooks to compensate the occasional malfunction instead chooses to risk their entire authorization to sell to 1/5th of the earth by attempting fabricate millions of data points perfectly, any one of which could reveal their lie. The conspiracy levels one entertains can vary a lot person to person. I'm not implying the answer is obvious. It's up to each reader to choose their world model.