[ttimbo]

Very curious! As Harkes says, try to get a sample of the oil.

How often do you check the oil level? Has the engine been using any oil? Have you had any temperature lights come on?

It is very unusual for this to occur without any warning signs, especially on a near new car. My only thought is that the engine was overheated after the drive up the mountain (why, I don't know -- oil surge, maybe?!), and the donut exercise just added more stress to the engine.

Regardless, this is a high performance engine with a very smart ECU, including multiple sensors and probes. Warning lights would have alerted you to any error condition, and the ECU should have put the engine into limp mode to prevent this type of damage.