That's all enforced by the government, it's not a limitation of the system. They might be comfortable with liability for more than this but are not allowed to by regulators - which is wise
I wasn’t trying to be cheeky. I must have misunderstood your comment?
As I understand it the L3 system is limited to limited access highway roads, < 40mph, and no lane changes. Those are its limitations, and I believe they are self-imposed by Mercedes, not any US regulations.
"Regardless of those capabilities, the California DMV is placing some serious restrictions on the Merc system. It can only operate during the day on certain limited roads, and only at speeds of up to 40 miles per hour. The system will be usable on California highways in the Bay Area, Central Valley, Los Angeles, Sacramento and San Diego, as well as on Interstate 15 between southern California and Nevada, where the autopilot was approved for use in January."
This indicates to me the limitations come from regulators and not the manufacturer but I might be wrong.
