I understand that new cars sold in the EU are set to be fitted with mandatory speed limiters, dubbed Intelligent Speed Assistance, or ISA, within three years, after approval by a key group of MEPs from the European Transport Safety Council. The limiters use traffic-sign-recognition and/or GPS data. The UK’s exit from the EU is unlikely to have much effect on the legislation as the UK tend to mirror the EU.

I had a very frightening experience using the speed limiter on my Volvo XC40 on a 70mph dual carriageway when I passed under a bridge carrying a road with a 40mph limit. The speed limited detected this and braked very sharply. It is very fortunate that there were no cars close behind me. It is possible to cancel the limiter by pressing the accelerator to the floor, but it takes a couple of seconds to respond. What is the legal situation if my car brakes autonomously and causes an accident?