E30 M3 Spec - Euro, USA and Jap

[VanquishDubai]

Hi all,
I wanted to ask the difference between the Euro, USA and Jap spec E30 M3's. Any thoughts?

I assume the core differences are:
Europe: Full Spec BHP as less stringent Emissions
USA : Lower Spec BHP due to Emissions, Reflectors on side bumpers for regs, Less choice compared to Euro Spec Evos etc
Jap:? Are these Euro or USA spec as standard?

In short, if I were to buy a Jap spec one with decent service history its fair to say that it "Should" be worthslightly less thnan a proper Euro spec one. Going on the rationale that Jap ones are always worth slightly less.

Thanks

[VanquishDubai]

No need for the help, managed to find the answer after some searching. Standard Jap spec comes with H box like USA and has Euro Body, however many Euro and USA spec were imported into Japan so VIN number checks help identify which ones.

useful link I found re the models of the E30 M3 here:
http://www.bmwmregistry.com/model_faq.php?id=8