CNN CNN Newsroom With Carol Costello May 19, 2015 13:58:00
Change just days before their biggest race of the year. the issue appears to be the new aero kits that chevrolet cars are using. they're designed to help cars go faster but when they crash and turn around it appears the new design of these cars is causing them to go airborne. the biggest example was when a car did a complete flip after hitting the wall. indycar officials obviously don't want to see anything like this happen on sunday. so they've made some rule changes. they're reducing engine power and making slight changes to the aero kits to add downforce. indycar officials said all along th...