"The car ran great all the way, other than the return spring breaking on the throttle cable. I fixed the spring and kept on cruising along."

So, there were no other 'symptoms,' save for the oil puddle?

In order to dump that much oil, the engine would have to fail in a major way, and you would definitely know about it!

I'd say that your mechanic is either grossly incompetent, grossly dishonest, or both. Ask him to explain how the engine failed. Better yet, ask him to show you what supposedly "blew up" resulting in your mini Exxon Valdez. Odds are that he will quickly change his diagnosis.

My bet is on the rear main seal, as I suggested previously. You've probably got a clogged PCV system (don't think that the B20 utilizes a flame trap?), and the high rpm's might have served to further increase crankcase pressure, which blew out the seal. Just a theory, but it's far more plausible than a blown engine. :-)

Let us know what happens, k?

-=Bob=-