Awesome race meet it was. I hope you took them to the pits to see some TF cars warm-up? Without a doubt, one of favourite things in life is standing next to a fuel car when they're warming-up and my ears nearly bleeding when they stab the throttle! I'm 25, but have the hearing of a 60-year-old I reckon..
Nice set of pics too. I see we both use a D70/70-200 combo... Good choice
#1 is good. Both cars in frame and in flight, with a touch of panning. WB is a bit warm and needs a tweak to the blue side. You shot JPG, so less is more.
#2 Brett doin' the thing he does well.
#3 is a pretty sweet pan job! Noticed you shot in Aperture
mode and chose f4. If you went for f2.8 you could knock a few stops off the ISO and end up at 640, which I think is a better option, especially on the D70 at night. WB is also much better in this shot, compared with #1.
#4 People on bikes in any motor-sport are just plain nuts! I take my hat off to them..
Anyway, that's my 2c.
Cheers
James.