Compact / small up to 15,000€

Hi, I’m done with my studies and I’m looking for a compact car (possibly also small car) for a maximum of 15,000€ (first car). Since I don’t have a job yet, I don’t know exactly how much I’m going to drive, but I suspect it’s too little for a diesel. Requirements are often highway/highway (up to 120/130 km/h, 60-100km) and possibly every day to the job (more short distance as I want to move towards the apartment). Air conditioning/automatic is a must. In the price region also EU6, preferably vacuum cleaner, to the 100hp. BT and MP3/USB/AUX would be nice to have both. Tempomat would be happy, but is probably rather rare in the above-mentioned classes. Location is Greater Stuttgart, with a “new car” a longer journey to pick up 200km would be no problem. With the vehicle I am relatively open. In general I find Golf nice, but because of the many problems with the VW (and the TSI engines) The following cars are recommended (please correct if I am wrong): The Corsa is in a similar price region as the Focus, although a little better equipped (for a little less horsepower and lighter). What do you think in general? If I have misunderstood something, please correct it.