USAC/CRA Sprint Car Crashes @ Petaluma Speedway 9/4/17

Kevin Thomas Jr., Brody Roa, and Max Adams get upside down during USAC/CRA competition at Petaluma Speedway on September 4, 2017. All drivers were OK.

[@theivory1]

Carboard walls? Might as well be.

[@stalehunter]

no wonder we have to pay so much for plywood, this track is using it all up.

[@tedsmith6137]

That wall is rubbish! I hope they have something more substantial now.

[@GPSjammer]

They don't