Clear 'Wind Shields' were not common on Indy cars, with a few exception, until the 40s on and them mostly small rectangles ala most Millers,Blue Crowns and Maserati. Gaston Chevrolet used a metal deflector where Tommy Milton's 1921 winning Frontenac had no deflector.
I believe, and may be wrong, but the Aurora cars are roughly 1/32 scale so FFP wheels wouldn't work.