Lamborghini-SCAM engines

In Class 1 Offshore racing (http://www.class-1.com)(catamerans racing in 8 different venues, top speeds up to 285 km/h), most boats are powered by 2 Lamborghini V12, 8.2 Litres. And then there is a couple which is powered by 2 Lamborghini-SCAM's.. What is this, and what is the difference? Anyone able to help me?

I don't know much about Lambo boat engines but would not mind learning more is someone has a link to post.

I've looked at these sites, says alot about the engines, but I still can't find out what this "Lamborghini-SCAM" engine is...

http://www.lambocars.com/marines.htm

http://www.lamborghiniclub.com/offshore03.htm (weey.. Spirit of Norway!)