There are several things to do *if* the goal is to slash side force... side-to-side symmetry, smaller quarter panels, and deleting the "dorsal fin" or whatever it's called. Less side force would reduce cornering speeds, and thus create more off-throttle time. But the current philosophy of Nascar doesn't want more off-throttle time... quite the opposite... the current goal is WFO cornering to promote pack racing. Racing nirvana for me would be... 2018 horsepower and downforce, plus sharply reduced side force... followed by an extended period of relative stability in aero rules to allow all the major teams to get their act together. My theory is, we got to this drafting package because HMS and Penske lagged behind in development in 2018. That allowed the 18 and 4 cars to dominate things for two thirds of the year... and the fans revolted... which led to Nascar's philosophical about-face for 2019.