Of course, the upgrade of flying cars is a matter of brushing experience. The landlord must first make sure to play for at least 2 hours every weekend ~ You can choose doomsday or relay. If you have enough figures, you can guarantee the first place in each game and keep enough blood, it is recommended to brush the doomsday. Because the doomsday experience is directly related to blood volume and game ranking. If you don't drive much, it's also good to brush the relay, because no matter which team loses or wins the relay, the experience gap is not particularly large, but the experience is very high (especially when there are many experiences). And the advantage of relay is fast speed, full acceleration, faster and easier than the finish line (less chased by the devil). Courses that need or can be offered with experience include: purple diamond 40%, blue diamond 20%, pet 10%- 15% or 50%, mentoring 20%, amateur 20%, friend 1%-5%, toffee (double experience). The individual won about 5,000 at the end of a single day, and the relay was about 4,500 (at that time, it was 8 times the system) ~ If the landlord didn't play the trumpet at the end of the day, it would be the fastest and safest to brush the relay ~ Of course, you can get some experience compensation by modifying the car, buying props in the mall, opening props and hanging leisure areas, and the landlord can try it. As long as these are collected, the upgrade before the level of 100 will be very fast.