I'm considering buying a 2016 Honda Jazz. It's the top of the range model with two previous owners and a full service history (mostly Honda. I viewed it online and the car seems in very good condition, however, it has done 126,000 miles. The price is £5000. The dealer is unable to say for sure if the mileage is mostly motorway but doubts that this kind of mileage can be put down to just town driving. He offered just one month's warranty. Is it a risk to buy a car of that age with such high mileage and, if so, should I buy an extended warranty? I have owned two Jazzes so I know all about their reliability and longevity.