Don't read this if you are easily offended, cos you'll just get cross. PM me rather than 'spoil' another thread It's a surprisingly unriced-up Supra Nathan. Oh, you mean the noise? It's the Blow Off Valve (or Dump Valve for English people), and it makes a silly whistling noise that is worth at least 500hp.
But they really need to learn how to use a rolling road... The guy who owns it probably claims he's got a doctorate in dynamometers, and helped the Renault F1 teams achieve the first 9 hp of their F1 engines, but in fact he's quite clearly an idiot with a rolling road and a foreign instruction book. But it's EASY money when even more idiotic car owners come along and think the print out from said idiots rolling road is conclusive proof of having a million torques.