I'm sure it is immense, but the cost difference is a lot.
Just suprised me that's all.
What you have to think guys is the SR20 was designed to be turbocharged...that's why even the NA engine has all the castings for the turbo fixtures.
As for a track day, that would be f**kin' awesome!
Yeh, that is cheap for a full day this side of the border. Brands or Oulton in mid Summer are over £200.
You can find some cheap ones around the place, but 'open pit lanes' are always dearer.