Barron’s took the latest version, number 14, of Tesla’s FSD for several spins, as we have with prior versions, to help investors not exposed to the technology understand the current state of play. It’s getting better.

Tesla's Full Self-Driving software is still ironing out minor issues like being stunlocked by engilding rays of sunlight.

I’ve put over 200 km (125 miles) on Tesla’s latest ‘Full Self-Driving Supervised’ (FSD) v14 update, and I’ve gathered

The California DMV has given Tesla a 90-day ultimatum to correct its self-driving and autopilot advertising claims or face a 30-day sales suspension. Tesla must clarify that their vehicles require active driver supervision.

In the seven years since I last reviewed it, Tesla Autopilot and 'Full Self-Driving (Supervised)' have come a long way. But its biggest issue has gotten worse.

Tesla ( NASDAQ:TSLA) stock is down about 0.5% on Wednesday morning as the company faces a regulatory headache in California after the Department of Motor Vehicles said the automaker used misleading terms such as Autopilot and Full Self-Driving for its driver-assist system.

The DMV gives Elon Musk’s EV company 60 days to change how it promotes Autopilot and Full Self-Driving features or face a 30-day sales ban.

Road markings, GPS precision, merges, diverging routes and even inconsistencies in traffic can nudge the system toward decisions that look abrupt to drivers.