I've had a decent run out today... Suffered from a sudden total system reboot on the motorway, which was nice. Sat nav, audio, phone, travel assist... Kaboom and about several minutes for it to restart.
That and yet more random drops to 44mph in a seventy mph dual carriage way. That's not sign misreading.
Hopefully later this month its trip to the garage might fix some of this.
Something else to watch out for, on a motorway with a variable speed limit... It spots the advertised speed signs on the overhead gantry but only brakes as you go under it....watch out for speeding tickets from that!