In which year did the winning race car first exceed 100 mph in the Indianapolis 500 automobile race?

Diver Dan, having grown up in Speedway Indiana (yes I am a Speedway Sparkplug) I was just happy to see a question based on my home town. And since I knew this one having met Pete DePaulo when I was 12 in 1963 I knew what Pete was known for so I got this one right. Go Sparkplugs! LOL 😂

There should be a do over