So it seems to me like there isn't enough raw data about the auto industry available to consumers. What are the odds of having a lemon Model S like Edmunds' vs

So it seems to me like there isn't enough raw data about the auto industry available to consumers. What are the odds of having a lemon Model S like Edmunds' vs the odds of having a GM that drives itself into a tree, for example? I'd obviously rather have to replace parts than have my accelerator go nuts, but is there any real source of data outside of anecdotal evidence via Consumer Reports or relative outliers from subpoenas in the case of Toyota and GM?