I am not sure thats factual, more heresy, I have also read that the other way round, jdms give 10bhp more
Just on this point, its proven that JDM GT4s have more power than UK GT4s - so maybe there is something in it.
Back on topic, after looking over Darrens 240z at the weekend, did you know that the basic layout of the Zed has been pretty much the same from its inception - despite being many iterations older his 240z had the cubbies behind the seats, the rear turrets intruding into the boot, even the bonnet has flaps either side that lift up to expose the battery and fluid box. Also has the triple gauge in the middle that is tilted towards the driver.
Didnt have a bass speaker behind the driver though...