The Interstate Racing Association commonly known as the Bumper to Bumper IRA Outlaw Sprint Series is a regional winged/410 Outlaw Sprint Car sanctioning body. IRA was founded in the mid 1960's and competed in their early years as winged Super Modifieds. IRA competed on both dirt and pavement in the early years. The term Interstate Racing Association came from the fact that the racers hailed from southeast Wisconsin and Northern Illinois and the fact the tracks they competed at, such as Wilmot and the Waukegan Speedway were just over the border from each other off the I-94 corridor.