Nope. Imports are practically closed for commercial import purposes (i.e. for local dealers), however, in case of transfer of residence, personal baggage and gift schemes, import is open for genuine purpose and overseas Pakistanis (just policies have been changed and made strict).
You may Google and also search on this forums, for sorting out the mechanism of importing your car here (Current policy have been discussed sometimes here).
Still not clear, contact Customs Department, Pakistan directly (via helpline or email).