Margalla, Cultus, Alto and Mehran, all of these cars feel like flying when you are driving at 100 kms/h, over a 100 kms/h they have no grip at all, No wise driver would go beyond 100/110 kms/hour on these cars.
Khyber on the other hand feels secure even at 120 kms/hour, beyond that it wont help save any life too, as the safety standards of all local cars is almost Zero.
No Airbags, No secure driver and passenger cabin etc.
A college mate died in a New Margalla while going back to Hyderabad, the car had many roll overs. Very unstable car !