The difficulty is mostly about long braking distances requiring impractically large sensing ranges, self-driving cars will certainly be adopted earlier that highway trucks: https://kevinchen.co/blog/autonomous-trucking-harder-than-rideshare
The difficulty is mostly about long braking distances requiring impractically large sensing ranges, self-driving cars will certainly be adopted earlier that highway trucks: https://kevinchen.co/blog/autonomous-trucking-harder-than-rideshare