JDMs ko ganda and badnaƔm karnay mein, I believe, 95-99% role dealers hazra'at ka hai (most of them, not all), who had been importing major accidented cars, air bags opened, some water damaged, etc. Chassis bent, odometers tempered, fake / no auction sheets, etc. and then repairing them at local mechanics / garages / workshops, etc.
I have myself seen some cars repaired at garages, and then sold at showrooms in mint conditions, And I can't explain, during repairing work, unnki halat kya hui hoti hai?
Just imagine, when comparing such JDM even with a brand new Mehran, Mehran would be 1000 times better than that JDM, and such incidents shake the confidence of potential buyers.
Yes, they have been imported in the past, via Hundi / Hawala, etc. (when it comes to money trail), but our Govt. and concerned departments did not take any action. Maslahattann, or otherwise, eyes kept closed. Then, policies were for overseas Pakistanis, again, no action taken.