First own car with 26 for max. 10000 €

Hi dear forum community, I am 26 years old and plan to buy my first own car in August. A few informations: – Savings ~10000 € (but would hate to spend all savings, would be better 8000 €) – Net wage from August 1200 € (after 6 months most likely more than double) – Expenditures from August without car/Sprit/etc 600 € – Annual drive ~20000 km, of which 75% on the highway (preferred speed 130-140 km/h, remaining kilometers of highway and small (but not mandatory): – Automatic transmission (but nothing like Toyota’s MMT transmission…) – Automatic climate control – Xenon I have previously driven (but not possessed) in my driver’s career: – Several months Corolla E11 1.3 Automatic – Several days Auris 1.6 MMT – Few days Astra H 1.7 CDTI – Several days Golf V 1.9 TDI – Several days Almera Tino 2.2 dCi – A few hours E 46 330D – A few hours Aston Martin V8 Vantage I liked the Corolla E11 automatic…comfortable, robust and uncomplicated (and with merciless 86 ps and without air conditioning!), but loud and spongy on the highway beyond the 120 km/h. As a rental car on a business trip I also liked the Astra H, especially the low consumption. So far I tend to an Astra H GTC 1.7 CDTI, Corsa D 1.3 CDTI or an older Corolla Diesel. What would you buy o what can you recommend to me? I am open for as good as any suggestion! 🙂 Greetings and thank you for your answers! Damkoehler