Aston Martin:
There's a 60's DB5 and a DB6 "Jhal Magsi"
Bentley:
Continental GT in Karachi- it was spotted in Karachi by a lot of people and one person got interior and detailed shots of it as well.
Chrysler:
There's a Silver 300C in lahore. There's also a Dodge Caravan (which isn't really a chrysler, but since it's basically a Town and Country, let's just call it a chrysler)
No Lamborghinis as yet. There are a few ferarris though...
Photographic proof can be found all over Pakwheels- just use the search feature