Are your ears unable to be fooled? I know the only two cars I can't tell apart in GT4 by sound are the Ford GT and Panoz Esperante, and I don't have an "awesome sound system" and I'm going deaf and senile in my dotage.
I know what the procedure is for each car. What they do with the data after that is their prerogative.
Your argument requires others to prove things to your satisfaction. If you choose to believe them or not, that is your prerogative - though you must be aware that by remaining so close-minded you instantly put yourself into an inescapable box where you can only ever be 100% right or 100% wrong.
However that doesn't mean you can be so antisocially rude to people who put forward quite reasonable evidence for their position while doing the equivalent of ramming your fingers in your ears yelling "LALALALALALALALA".
For instance, you've now called on me to provide proof of a discussion I'm not involved in. Why? Because I said Paulie's post was reasonable evidence. I neither agreed nor disagreed with him, but you've latched on to my post in that manner, for some reason. You've boxed yourself in with your mindset and are reacting aggressively to anything that seems to contradict that mindset. Paulie's position is reasonable and he's provided reasonable evidence. Your position was reasonable, but you've responded with "lol" and changed his quote to "blah blah blah". Open your mind, Quaid.