Josef Newgarden and Robert Wickens were the two fastest cars at Road America Friday and it's easy to see why. Look at Newgarden's rear wing compared to one of the Andretti cars that were slugs on Friday. Newgarden is running far less downforce on the long Road America straights and it's paid off.
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| Newgarden – fastest – top element of rear wing laid flattest |
Wickens – fast – top element of rear wing laid back |
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| Rahal – Slow – top element of rear wing too vertical |
Rossi – needs to lay down top element of rear wing |
