From Ian Gordon
Brian Moss suggests that all cars should be electronically limited to the speed limit (11 October, p 20). Which country’s speed limit? Is he suggesting a dynamic speed limiter, based around either GPS or transponders? How confident is he that such a system would not suddenly suffer a glitch and lose the trailing zero from a 70-miles-per-hour limit? I would not like to be in a car which suddenly and incorrectly decided it was travelling at 10 times the speed limit.
Camberley, Surrey, UK
