Used up to 7,000 euros

Moin, I need a new car. My current car is an e36, 316i compact, Bj ’97, 157.000 Km. Unfortunately he won’t come over the Tüv… I was very satisfied with the driving feeling, I wouldn’t have objected to a new Bmw. Budget is at 7,000€, and I would like to spend less. I drive almost exclusively in the city, mostly short distance. I would have liked about 100 HP. 3-door is perfect. So far I have thought about a 3 Bmw (e46), 1 Bmw and Mazda 3. Where with the 1er probably from the price becomes difficult Important to me is reliability, have no desire to put sums into the car What else can you recommend? This one is in my eye: 1er BmwInteresting would also be this 3er This Mazda 3 is my favorite. Will the days drive a sample and then possibly let it look at under. What do you think of this one? Thank you already!