At the start of the year, I bought a 2018 diesel Peugeot 3008 to cater for a daily commute of 40 miles each way and regular long distance family trips - 20,000 miles per year on average. Post-Coronavirus, my company has moved firmly to long term working from home and I'm averaging 100 miles a month. Would I be better off swapping now to a smaller petrol/hybrid equivalent and swallow the cost to change, or stick with the diesel and risk mechanical issues due to low mileage?