Family car up to 16,000€ and 32,000km of mileage annually

Hello together, by moving to the surrounding area and planned family growth, I am looking for a car, which has comfortable/comfortable and yet enough space for 2 children. My basic conditions: 1. Price +-16,000€ 2. mileage up to 100,000km 3. Diesel Euro 6, but can also be natural gas or electric 4. My working distance is currently a total of 100km per day with 90% highway and the rest within 5. We wanted to go on holiday and 2 Reboarders + luggage should at the end also reinp 6. Visually it should be something simple 7. No Van In the eye I had the VW Passat Variant. Are there alternatives that can still lift about 150,000km over the next 4-5 years? Quite robust and yet comfortable? Skoda Octavia, Volvo V60 or Mercedes-Benz C 220? Postcode 63… + 100km radius. Thank you!