Make sure you take the baby seat out of the race car before you go to the grid!!!!
Seriously, since the baby would have to be in spectator areas, I think that the greatest risk would be to fire up the engine in the paddock with the baby unprotected on the side of the car where the exhaust exits. Make sure you tell your friends before you fire it up. Also be careful of nearby cars. (don't know what the paddock is like at SCCA events, only been there for IRL races.
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