Track day tow points for 370Z

Nician

Anyone who is taking their 370Z to the track, what do you use for tow points?

At Laguna Seca and from what I can find on-line for other tracks in the NorCal area, I need both front and rear tow points.

I've got a brand new '11 370Z w/Sport package and in front there is a threaded hole in behind a removable plastic piece of the front grill that looks perfect for a large eye-bolt to be the front tow point.

In the rear, there is another small piece in bumper that covers a hole in the rear bumper internal foam, but no threaded hole in the metal underneath.

Is this supposed to be the rear tow point? Should it be drilled and threaded?

What are others using for a rear tow point at tracks that require both front and rear?

Thanks,