SD is useless nowadays, i don't know what happen to crap system.

I can SD from Selayang to Subang without single job, from Mont Kiara to Subang without single job for this week. 
from what i read, no need to convert into commercial car. If commercial car the cost is much higher, no difference with taxi already.

It remain as personal car but subject to all the regulation above, of course need PSV as well.