Tesla is edging closer to what it calls unsupervised self-driving, but the reality on the road is far narrower than the sweeping promise of cars that can simply head out alone. Limited robotaxi trials without safety drivers in Austin,

Tesla's 10-billion-mile autonomy requirement builds an uncrossable data moat—use weakness below $400 to accumulate.

Tesla's Full Self-Driving (Supervised) may not actually be autonomous, but it is still one-of-a-kind in the U.S. even years after its initial launch. For now.

This makes Musk’s latest admission incredibly strange. If the internal metric for true, safe, regulatory-grade autonomy is 10 billion miles, why on earth was the CEO promising it would launch last year when the company was mathematically nowhere near that goal?

Mercedes-Benz will launch a new advanced driver-assistance system in the US later this year that lets its vehicles operate autonomously on city streets under driver supervision.

Absent a federal standard, states that allow autonomous vehicles, or AVs, to circulate have had to make up their own rules. But is that safe enough?