Went to a tractor pull last week. I was super bummed that I only had my 150-500 sigma, I was sitting way too close for that. Fastest shutter speed I could muster was 1/20 so not many came out too good. Its a great lens though, I don't think I could have done better with anything else. The guy in the 2nd picture is looking down because right before the photo was taken, the motor blew.