I think NOT!
This is Pakistan Dear Brother, things work differently here compared to rest of the world and laws defied (due to multiple reasons).
For car, property, house, plot, etc. its a pet rule, that whenever you buy it, it is always its right time.
I do not think, prices will be getting lowered. Yes, there are chances that they might increase, or at max., stay at current prices.
Of course its the right time. Do not wait! 
When lock down ends, I fear prices of new, and especially used cars, might go up.