Andretti could tell that cars would end up carrying too much load and force as they headed into the traditional Turns 3 and 4 of the oval, and with the number of road-course turns that now lead into that corner, an addition of another chicane would allow the cars to slow down and potentially increase competition.

What to know about Bank of America ROVAL 400 NASCAR Cup Series race at Charlotte? We've got you covered, here's everything to know about the race.

Twelve drivers remain Cup-eligible after Round 2 Playoff races at Kansas and Talladega. The four lowest in points will be eliminated after this weekend’s 109-lap, 253-miler around the 2.28-mile road course that includes 17 turns.