There is very little marketing done for open wheel racing, WoO is perhaps an exception. In general what little marketing that is done is to current fans. No easy answers because marketing takes money. There are opportunities for free or low cost marketing but not enough of this is done either. I agree that age of fans is an issue, skewed heavily to the over 50 crowd. I went to a stock car track in NC and was amazed that there were fans of all ages present. Point being there is interest among younger folks in racing but how do you reach out to those who do not know about sprints, midgets, etc.