The powers that be said they wanted cars that are five seconds faster per lap, so the coming chassis' are longer, wider, lower, and sleeker, with massive diffusers in contrast to today's cars. The amounts might not seem like much, but in a sport where a tiny fraction of a millimeter can mean a blown engine, having a nose that is almost eight inches longer and a rear wing that is nearly six inches wider will bring about huge changes in behavior. Other revisions go beyond length - the front wing will remain 180 centimeters wide, but be raked. The tires will be noticeably wider, and Pirelli says the rubber alone will be good for three seconds of that five seconds per lap.
It's said the cars will add 100 pounds of downforce, 30 percent more than today, while suffering from only ten percent more drag. In truth, though, no one knows how this is going to play out since the amount of aero versus mechanical