My 22 year old granddaughter has just bought her first car (on a pcp). It’s a Toyota AygoX automatic. I’ve been given to understand that it has the stop/start technology. I’ve read that this type of car can develop problems if the system is used continually and if the special battery has to be replaced it’s very expensive and not covered by the car’s warranty. Am I right about this?

She doesn’t spend much time in stop, start traffic because we live in a semi-rural area.

My feeling is that it would be best to turn the system off for most of the time, but I don’t want to give her the wrong advice.