The car rental building is convenient. It is directly accessible from the first floor of the airport terminal 5. After returning the car, you can also return to the airport in the same way. Hertz car dealership logo is clear and the procedures are fast, but the clerk will recommend trailer insurance, which really does not need to be bought. Pick-up and return procedures are simple, the Volvo 60 car is very new and very clean, 24 years, only opened more than 9,000 miles. The car dealer said that the toll road fee was $89 at the counter in advance, let us pay online, and later tied a credit card online to pay, and it was true that Chicago to Champagne one way 7.5 yuan. Fill up the oil before returning to Chicago, and then fill it near the car dealership before returning the car. Otherwise, you will have to deduct the oil fee and the labor fee for you to refuel. However, the gas station near the car dealership is too pit, champagne refueling per gallon 3.16 yuan, and the bp gas station near the car dealership will be 4.5 yuan per gallon. Fortunately, there are not many more. The traffic is not familiar, and I didn't specially find another gas station. Everything else is fine, the whole process of renting a car is very pleasant, and the $200 deposit pre-authorization is lifted after returning the car a day.