We are a family or four from the US and rented a Jeep Renegade. Very good overall vehicle for us. The experience with Sixt was excellent too. Staff was very friendly and helpful. Easy access. Fast service. Two helpful suggestions. First, remember to research and get if needed your international drivers permit in advance. It's easy and do it asap. Also, you may wish to ask the counter person if your vehicle is setup with ESS, which is the automatic start-stop feature. This feature can be irritating and sometimes dangerous, and as far as I know there isn't any way to disable it. Overall this rental car experience was excellent, and we highly recommend Sixt, particularly at Rome's Fiumicino Airport.