If you're going thru Iowa, you won't have to worry about having anything on the car.
Iowa allows you to drive for 15 days on just the signed title/bill of sale.
However, Illinois requires a temp plate to even drive the car off the lot...
Reason why I know these laws?
I purchased my 1990 Honda Accord, and was still under the 15 day grace period in Iowa. Tried driving to a house in Illinois, but was stopped in the first town.
Cop had no idea what to do and had to call his supervisor, who had to call the LE desk in Iowa, who told them it was ok in Iowa.
His supervisor just told him to have me go back to Iowa.
