Something to remember, as it was taught to me long ago... there are different styles, different wants, and different client needs.
Sounds like if you're shooting a track for the owner, he'd want a few "capturing, artistic, different angle type photos, but if you're shooting 50 cars, the photog you're referring too, likely needs to produce more than 300 images per trackday, like I'm seeing on your website, if he wants to be successful. He/she also probably does not have the time/client need to edit each photo, like you do with your work. I agree and do notice some photographers shoot at extreme shutter speeds here at tracks in the northwest, and some do not. At the end of the day, if they're buying these particular photos, and everyone is happy, does it matter what we think, as we pixel peep and critique? N.o.p.e.
Remember that before they earned their contract.... they were shooting from the sideline as well. I know I've been there. Hell I've been asked to leave an event as well. Back in 2006 Whatever you may be shooting, regardless of the subject... motorsports, HS sports, wedding, remember that when there's a contract, they could be paying to be there, theres a trade of sorts, they're required to be there, rain or shine, 40 degrees-110 degrees... you cant just show up as you please, and you're expected to make the clients of the provider happy. So if they arent doing this, they wouldnt have the contract to begin with.
When another photographer shows up to shoot from the outside of the venue, in your case, a car or motorcycle lapping day, remember that the event is like a farmer with his crops.
Farmer "A" has 10 rows of corn, when another guy comes in and shoots from the sides, its no big deal. Farmer "B" takes a few ears of corn, every's happy, but now Farmer B wants to harvest a few rows.... he now has only 8 rows to make money on. 2 more farmers show up and now Each farmer, needing 8 rows of corn to survive, all are making money off 4 rows of corn and everyone is broke as a joke since they're living off the same land. Now everyone's broke, but hey, at least they have options from a bunch of gwc's! Farmer "A" never went to Farmer "B's" house and took his corn. So in essense to a lot of photogs I know, its a respect thing. Nothing personal. Thats at least how I take it. Surely everyone here understands the difference between a guy "showing up and shooting from the sidelines, and wanting full out permission to full access... And I've gotten contracts and I've lost out on contract bids as well.
Just something to consider.