Slightly OT; Cryrogenically frozen engines

Slightly OT; Cryogenically frozen engines

I was listening to the radio today, and they had on a guy who cryogenically freezes motors and other things made of metal. He says that it increases strength and can make a motor last 3 to 5 times longer than normal. He also said that some NASCAR people were using it. Sounding interesting to me, wondered if anyone else has heard of this or perhaps tried it?
His website is www.cryopro.com if anyone wants to check it out.

Actually, the guy on the radio said a TV program did a show on him and they claimed that he had said that. He said they sort of picked and choose what they wanted to hear. He said in reality he was getting 60mpg instead of the 50 he was getting before in his hybrid.
Anyway, he said he could do a V8 for about $350 which doesn't sound too bad. He also said it isn't worth it to take a perfectly good motor and tear it down for this. Only if someone was rebulding anyway would he suggest it.
I was intrigued by the idea and surprised I hadn't heard of it before. Unfortunately, I'm nowhere near him and have no plans to rebuild any motors in the near future!