I have a 2004 5-door diesel Yoyota Yaris which I like very much. I have recently had a second hip replacement and am wondering if it is time to consider replacing it with a small automatic, as I've read that it is not wise to change to an automatic at an older age.

I need a small, reliable supermini with good fuel consumption and low yearly costs. I don't actually need a new car now so would consider waiting if you think there might be a new model on the horizon which would suit better than current models.

I don't have any particular budget and would consider buying anything up to £20,000.