If anything, this recent move by the Chinese regulators does provide some parameters as to the sort of drastic measures that they are willing to undertake to protect China's interest. Any prudent investor will have to factor this in mind for any subsequent purchase of Chinese stocks.
This is probably a temporary dip. Nevertheless it serves as a reminder to manage expectations in respect of any overly optimistic target that self driving cars will be rolled out on a mass scale anytime soon , and correspondingly, any skyhigh valuations arising from the same.