Hello, actually I wanted an Aygo, 107 or C1 with the 3-cylinder petrol. The car is driven 70% in the city and rest of the country road, about 10,000 km / year. Now I have found a nice C1 with the diesel. How durable / repair prone is the small engine? How expensive are repairs? Can one retrofit a filter with the actually one? What do you mean with my profile the extra price with tax and insurance? Greeting