The engine failed to start twice: The first time was the day after renting the car, in the parking garage of the exhibition hall, it would not start. I called, but both breakdown numbers on the car key were unreachable and automatically disconnected! I tried the phone number on the rental platform, and after several transfers and explaining the situation, we waited for about an hour for assistance. During this time, I kept trying to start the car. Shortly after the phone contact, it miraculously started. Due to our tight schedule, returning to the airport to exchange cars was not an option, so we agreed that if it happened again, we would stop using the car. Miraculously, after four days, on the last day, while on our way to the airport, we stopped at a gas station to fill up the tank before return. After refueling, the car wouldn't start again! Tried all the phone numbers on the key and the rental company number, but none worked. The rental platform's phone said they couldn't help and asked us to call the breakdown number. Rushing to catch a flight, after about forty minutes of attempting to start it, it worked again! The car had only around 7,000 kilometers and was a 2018 model, so it should have been in good condition, but it was definitely a problematic car! Originally rented a Volvo V40, but was told at pickup that it was upgraded to a Jeep Wrangler. I thought I was lucky, but later felt it was a trap! It was a scary experience!

The Hertz rental counter at Frankfurt Airport is very prominent, and the staff are enthusiastic. They held the Bus for us even though our flight was delayed. The procedures are simple.

Arriving in Frankfurt full of enthusiasm, I had to walk quite a distance to collect the car, which was a C4 Cactus with a 1.2L gasoline automatic transmission. I had to find it myself in the parking basement. The car had only 8900KM but felt old and small. Upon inspection, I found damage on the side mirrors and hood, suggesting I was being scammed. I immediately reported it and got a yellow tag for the damage. Driving on the German autobahn was a disaster, as the car roared at full throttle for thousands of kilometers over 21 days and couldn't easily overtake other vehicles. It felt like a gardening vehicle suited for an old Frenchman in the countryside. The 1.2L engine lacked torque, making it impossible to climb even small slopes in parking garages. I nearly hit cars multiple times when the car rolled back during refueling. Thankfully, with 20 years of driving experience, I used the handbrake technique to manage. Choosing Frankfurt as an entry point turned out to be a mistake. The rear windows couldn't open, making it very unsafe, especially for female drivers. This car rental was the worst part of our one-month European trip, despite the beautiful scenery and nice hotels. Avoid believing the big companies' promises and free upgrades; Hertz gave me the worst car, and using QEEQ was just a waste of time and money.

Everything was great!

I reserved a BMW 3 Series but was given a BMW 5 Series Touring. It's a diesel hybrid, comes with navigation, and can display the speed limit on the dashboard with the vehicle's LIM speed limit function, making it very convenient to avoid speeding. The upgrade was great...