Car looks to be bred from the prototype GT500's that had 4.6's in them.
Posted by Robert Lane
"This all started from an article we published on 08 December 05 stating that some prototype GT500s have 4.6L engines in them. Since then, speculation has it that a GT350 is on the way. Shelby is coming out with a new car on 12 April - it might be the GT350 H."
You can read more here
http://www.stangsunleashed.com/forums/index.php?showtopic=591
Posted by Robert Lane
"This all started from an article we published on 08 December 05 stating that some prototype GT500s have 4.6L engines in them. Since then, speculation has it that a GT350 is on the way. Shelby is coming out with a new car on 12 April - it might be the GT350 H."
You can read more here
http://www.stangsunleashed.com/forums/index.php?showtopic=591