Our trusty 2004 Nissan X-Trail, at 160,000 miles, worries me and may need replacing. Whilst the engine is still sweet, there is a fuel judder at 1800rpm again. Last year we replaced the EGR, camshaft and crankshaft sensors and fuel filter valve. I fear that the short journeys may be catching up with it and it may have to go. It is my wife's car and she needs to transport a four-year-old child, plus disabled mother, so we need room in the back for a wheel chair.

We live in rural Scotland and in recent years, the X-Trail has been superb at dealing with the bumps and snow. It is also perfect for carrying the above listed cargo. It needs to pull a braked trailer, during the summer months, the max weight being 1.2 tonnes. The annual mileage is 12-15,000 miles, and the daily journeys will frequently be seven miles each way to nursery school. I had a Kuga until recently, but traded it for a RAV4. The RAV4 is much better for the wheelchair, given the lower back as a result of the side hung door and I would happily get another RAV4 to replace the X-Trail, but am worried about the diesel and short trip combination. Any thoughts?