I have a 212 Nissan Qashqai petrol with just 17000km on it which I am currently getting pricing to change. I have an attractive offer to change to a 241 e-power but not too pushed. By January 2026 my expected total mileage on my current car is max 21,000km but the car will be 4.5yrs old then. Which is the bigger factor in determining car trade in values, age or mileage. Also is it wiser to move to hybrid in terms of cars keeping their value in the coming years compared to petrol and diesel cars.