We had 7 people along with luggage. The 7-seater car we booked was too small and unusable upon arrival. AVIS staff helped us switch to a slightly larger Ford model, which was very convenient.

A very good car rental company. Picked up the car at Munich Airport according to the directions in the comments. The service was provided by a sweet girl dressed in traditional Bavarian attire. You need to go to the parking lot and find the car based on the parking space number. The car was very clean inside and out. The only issue was not hearing clearly about a small parking ticket needed to leave the lot, resulting in an awkward delay at the exit.

The car rental company provided good service overall. However, the process at Munich Airport was a bit inconvenient. First, you have to handle paperwork at the counter, and then go to the parking lot to pick up the car. I carefully inspected the car inside and out, but if there were any issues, you'd have to return to the counter, which isn't very convenient. Also, I rented a Passat wagon, but was given a Skoda wagon, which felt like a downgrade. Since it was late at night and I didn't want to go back to the counter, and the Skoda was in good condition and a diesel, I let it pass. Still, the downgrade felt disappointing.