Yep, Nolan got it right. Those tires you're talking about have a lot more sidewall and grip than what we're using over here. It's usually Jaco Blue, Sweep Blue or Solaris Medium. They're a much less grippy tire with a very short sidewall and a lot more lateral movement.
It's a bit of a different experience. I'd be curious how your cars felt on the tracks you guys run on with one of those tires. They last quite a long time in club racing without falling off much, which is nice, but the grip characteristics are... not always that fun when you don't have great traction. It makes me miss foam sedan sometimes.
