No you can't despite tax exemption on remittance that is encashed in rupees at local bank.
To buy car you must become a filer. For that you have to register with FBR. Then file income tax return for last year AND wealth statement to get listed on Active Taxpayer List.
My advise is to keep out of FBR radar and buy a used car. They can send you show cause notice and penality for as little as not diclosing profit earned in your savings bank account (which you don't have to pay tax on as its deducted by bank).
They sent me an audit notice through email with 4 days due date. I read that notice after due date. No mail, no phone, no sms. Just an email. And they sent me 2 duplicate notices.
There is 25,000 Rs. Penality for not responding to audit notice in time. 50,000 for 2nd notice and 100,000 for 3rd. 100,000 Rs. fine for not reading an email which can easily just land in spam folder.
FBR is a expensive joke. Stay out of it!!!
Proof: