“The system learns over time,” Musk said. “The more people enable Autopilot, the more information is uploaded onto the network. In that sense, each driver is an expert trainer on how Autopilot should work. This can only be done as a connected vehicle.”
Yet Musk lauded the fact that the autopilot feature enables Tesla vehicles to continuously improve at autonomy by sharing data across the fleet, similar to Google’s cars.
（4）First of all, I think that the race has just begun. And 77 cars―that’s nothing in this race. The million miles that Google has passed in terms of the driving that they’ve done sounds like a lot. But I want you think about this: there are around 10 million Toyota cars produced every year. They last around 10 years. So there’s on the order of―this isn’t a precise number, so order of magnitude―around 100 million Toyota cars in service around the globe. Each one of those on average drives around 10,000 miles per year, so you multiply that out and you come to 1 trillion miles driven by Toyota cars every single year. If you compare a million miles to a trillion miles, it’s a factor of a million. So when you think about the number of autonomous miles that have been driven by anybody so far, with their handful or few dozen cars or whatever the number is, it’s almost nothing. In fact, the trillion miles that Toyota cars drive―that’s around 10 percent of total miles driven by all cars on planet earth. So you have to keep in mind what the goal is: in this so-called race, the track is very, very long and it’s going to be very, very hard to get to the end. No matter where the different companies are right now, and how they’re positioning themselves, the fact is, we haven’t gotten very far yet at all. Most of the miles that have been tested so far have been very easy, with only a few cases where there were really close calls, which is where AI needs to perform extremely well.
また「自動走行に必要なセンサ類などが積まれるようになったのが昨年9月から」とThe Verge記事にはあるので、ざっと4万～4万5000台くらいのModel Sでデータ収集が可能という目星がつく。