Formula 1 could see a 20% improvement in the quality of racing next year, according to Ross Brawn. F1's head of motorsport said he was optimistic changes to the cars for 2019 would enable drivers to race closer together and pass more easily. "Until the cars run, we don't know what solutions [teams] have made, but from predictions we're achieving about 20% improvement," said 64-year-old Brawn. However, teams say their research does not tally with Brawn's predictions. Many say they are expecting a very small effect, if anything at all. The changes - which involve a wider, simpler front wing and a wider, deeper rear wing - are aimed at reducing the amount of aerodynamic turbulence...
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