reliable diesel minivans for work journeys

Hello community, I’m addressing you with the above concerns. I’m looking for a small car with a diesel engine for a total daily distance of approx. 60 km. Since I live in the city, the car may not be too big for parking. At the moment I drive an old Lancia Y Bj. 98 which will not be able to make this route in the long term. My priorities are as follows: 1. Reliability, low workshop stays and maintenance costs 2. Low consumption h 3. The already mentioned size of the vehicle, it should move in the order of magnitude like my current Lancia or a VW Polo or similar. 4. Should not cost more than 900€ 5. The best not have more than 70tkm brand and appearance are not so important to me. I have of course already looked around and a Polo so from approx. year 2010 looks really good. I also heard that the Ford Fiesta models around 2006 should be quite reliable, which also my top priority. Above mentioned budget I could possibly also exceed because I have also looked at the new Hyundai I30 models which are however still too expensive for me because then I would have to finance for it. What are the most reliable diesel small cars you know so well? I am open to all recommendations.