Anyway... if as is certainly possible the writer of the following sentence ascribed to Tony Wallis,
QUOTE In 2002 the first V10 engines using this technology were built and tested exhaustively. A completely new V10 engine was designed and manufactured in 2003. Testing of these engines was prematurely terminated when the FIA announced changes to Article 5.1.5 of the engine regulations late in 2004 with the specific purpose of banning this rotary valve technology
was written based on no more than single cylinder mule engines and simulation work, then I'll say it: The writer of that sentence is a scamming liar who's only intent in writing that sentence was to mislead and deceive the reader. Which may be par for the course for sales types (they certainly always crept me out) and might explain my- and this is being charitable- lackluster performance in my short sales career
Tony Wallis is actually the inventor of the Bishop rotary valve (or at least the improvements to what is essentially a Cross rotary valve).
I agree totally with Desmo here. The article clearly states that V10 prototypes were built and tested so the assertion by McGuire and others that the engines never ran is undoubtedly an accusation that Tony Wallis has lied in that article.