I think this guy is on to something....If Washington were smart, they would subsidize racing with prize money rather than pork to congress......
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Good question would be how many engine advances came from aviation.
Actually, most advances in internal-combustion engine technology came from aviation, and the biggest driver there was war, and many of those advances came from government-funded research.
Actually, the only real new idea in IC engines in the last 60 years has been digital electronic fuel injection, and even that was just the logical development of earlier mechanical fuel injection systems.