For the first time in a long time teams have problems with lowering the weight of the car below the minimum weight, and it is particularly surprising that even top teams such as Mercedes and Red Bull have probems to lower the weight of their cars below the minimum weight

Cars must weigh at least 743 kg at all times during an event (including the driver and safety equipment, but not fuel). The minimum weight for 2017 is increased to 728 kg because of larger and heavier tyres and wider cars and for 2018 weight is increased because of halo head protection system introduction.