I am a loyal Sixt customer, particularly when I am in Europe (e.g., Cyprus, Germany, Sweden, Italy). Over the years, we have had a few odd requests and Sixt staff have always handled them quickly and gracefully. We rented a Sixt car at the Malmo central train station. A few days later, while exploring Öland, I locked the keys in the car. Sixt staff were able to magically, remotely open the car in 3 minutes. Then, after we left the car at the Arlanda airport, I discovered a credit card was missing. Your team found it had dropped out of my pocket and recovered it--saving me a LOT of hassle. And the car itself was great! (An upgrade!)