differences between the gen 3 GTB etune and gen 3 GTB

[Etune]

just wondering if anyone out there knows of any differences between the models??? what i know so far

Gen 3 GTB Etune
was limited edition jap car, release only in japan
came in manual only
slightly more aggressive ecu tune than the standard jap spec GTB
comes with all spec of standard GTB - forged internal blah blah blah
different areo parts - front grill, rear wing

anyone know of anything more??? easy way to identify a real gen 3 Etune???

Craig