IT SEEMS wrong-headed in these times of climate crisis to get sentimental over a car. And yet…Today I got rid of my trusty Mini-Cooper S after 18-years of fault-free motoring. I shall not be buying another car, ending an adult lifetime of car ownership in London. I am no petrolhead, but in the past I delighted in owning such vehicles as a Golf GTI convertible, a VW Beetle, a sporty Audi and even (for my sins), a Vauxhall Firenza. But …